LEAP FROG BOOKING
Ethan Robbins has been an active member of the bluegrass and Americana music scene since moving to the Boston area in 2009. The guitarist/songwriter and booking agent of Americana band, Cold Chocolate, Ethan has established longstanding relationships with musicians, festival and venue promoters, and others in the industry. Having also toured with bands such as Twisted Pine and Uncle John’s Banjo, Ethan brings a unique perspective—routing financially viable tours, while prioritizing musicians’ well-being.
After 10 successful years of booking his own projects, Ethan established the Leap Frog Booking agency in the fall of 2022.
Artist Roster
The Clements Brothers
The Clements Brothers are George (guitar) and Charles (upright bass), identical twins from the heart of New England. The two have been playing and writing music together for as long as they can remember, first entering the Americana music scene in 2012 as part of the internationally touring grass-roots band, ‘The Lonely Heartstring Band,’ with whom they put out two albums on Rounder Records. More recently, George could be found playing the role of Paul Simon in the hit national act ‘The Simon and Garfunkel Story’ while Charles could often be found in the bass section of the Boston Symphony Orchestra. Now, ‘The Clements Brothers’ marks their first original project together, focused on capturing their singer-songwriter sensibilities in a unique blend, with harmonies only achievable by their identical voices, at once enthralling and intimate, groovy and serene.
The Slocan Ramblers
The Slocan Ramblers (featured on the Grand Ole Opry in Nashville TN, 2020 IBMA Momentum Band of the Year Award Winner & 2019 Juno Award Nominee) are Canada’s bluegrass band to watch. Rooted in tradition, fearlessly creative and possessing a bold, dynamic sound, The Slocans have become a leading light of today’s acoustic music scene. With a reputation for energetic live shows, impeccable musicianship and an uncanny ability to convert anyone within earshot into a lifelong fan, The Slocans have been winning over audiences from Merlefest to RockyGrass and everywhere in between.
On their new album Up the Hill and Through the Fog, the all-star Canadian roots ensemble channels the past two years of loss into a surprisingly joyous collection of twelve songs intended to uplift and help make sense of the world. Bluegrass music is nothing short of catharsis for The Slocan Ramblers.
Rachel Sumner & Traveling Light
Fresh off a first place win at the 2025 Telluride Bluegrass Festival band competition, Rachel Sumner & Traveling Light have been captivating audiences throughout the northeast. With songs as sweet and biting as the nectar and venom in her voice, Sumner's lyric-forward writing and penchant for snaking chord progressions demand something far beyond folk conventions, highlighting the acrobatic range of her brilliant bandmates Kat Wallace (fiddle) and Mike Siegel (upright bass).
Sumner is no stranger to the stage. She spent her early career on the bluegrass circuit, singing and writing with the genre-bending roots group Twisted Pine. Since setting out on her own, Sumner's songs have been critically acclaimed: winning the 2021 John Lennon Award in the folk category for her song "Radium Girls (Curie Eleison);" earning a spot in the Kerrville New Folk Competition; and being chosen four consecutive years as one of the top Massachusetts entries in NPR’s Tiny Desk Competition.
Rachel Sumner & Traveling Light released their debut LP in the summer of 2022 to critical acclaim.
The Wolff Sisters
The Wolff Sisters is fronted by three sisters -- Rebecca on acoustic guitar, Kat on the keys, Rachael on electric guitar, and all three on lead vocals and harmonies. Raised on Bob Dylan, The Band, and Little Feat, the sisters crafted their sound around a honky tonk piano in the living room of their childhood home. With a talented cast of rotating drummers and bass players, The Wolff Sisters are a rag tag group of hardworking individuals that bring a big sound and timeless songs. Their music is honest and genre defying, but still rooted in traditional rock and Americana storytelling. New England Music Award winner for Americana Artist of the Year 2021 and Boston Music Award winner for Americana Artist of the Year 2020, the band’s electrifying live performance and unique sound continues to gain momentum and recognition from their hometown of Boston and beyond. The band is on tour promoting their fourth studio album 'Dark River.'
Kathleen Parks of Twisted Pine
Kathleen Parks is a fiddler, singer, and songwriter who brings joyful and creative energy to the stage and studio. For the last 10 years, she has been heavily involved in touring and recording with her Americana/Jamgrass band Twisted Pine, where she sings, writes, and fiddles. On her upcoming solo album, her captivating songs lean more toward Pop, Folk, and classic Jazz, while her virtuosic fiddle blends and reimagines traditional and modern musical styles with boundless groove and playful improvisational spirit. Her deep grounding in Celtic and American roots music combines with her love for pop songwriting, soulful vocals, and groove-based improvisation, making every KP performance unexpected yet familiar: a musical journey from beginning to end. Over the years, Parks has shared the stage with artists such as Paula Cole, Sammy Rae & The Friends, Gordon Lightfoot, Aoife O’Donovan, The Punch Brothers, Jerry Douglas, and Sierra Hull.
Vickie Vaughn Band
For bassist Vickie Vaughn, music is all about home. Even a casual fan of the reigning, three-time IBMA Bass Player of the Year knows just how important Kentucky, family, and home are to Vaughn. Between them, they’ve colored every aspect of the bassist-singer-songwriter’s lifelong career in music.
Born and raised near Paducah, Vaughn grew up singing and playing bass at churches, community events, and a local country revue show in western Kentucky. She moved to Nashville as a teenager to study at Belmont University, utilizing her college years – as so many Nashville-based undergrads do – as a foot in the door of Music Row.
Fast forward to the fall of 2023, she bested a handful of her own heroes – Todd Phillips, Mark Schatz, Mike Bub, and Missy Raines – to win the coveted Bass Player of the Year trophy, her very first IBMA Award. Then, in 2024, she repeated her incredible IBMA feat, earning another Bass Player of the Year honor, back-to-back. In 2025, she won in a “three-peat,” yet again taking home the trophy thanks to votes from her peers and colleagues in the bluegrass industry. The audiences at each year’s IBMA Bluegrass Music Awards roared as her name was announced, shaking the gilded performing arts center.
As a member of trailblazing and globe-trotting female ensemble Della Mae, an in-demand artist in her own right finalizing her debut solo album, and a ceaselessly popular side-musician across many roots genres, Vaughn demonstrates how a boundaryless, loving personal community can be purely reflected in a professional network. Like everything Vaughn brings to bear, her album, Travel On, is a remarkable combination of styles, textures, and inspirations that all make perfect sense under the joyful and harlequin umbrella of her unique approach to roots music.
Contact
EthanR@LeapFrogBooking.com
(301) 213-5851