1994 album, four, which garnered the group extensive media exposure. The Grammy Award for Best Rock Performance by a Duo or Group with Vocal in 1996 was awarded to "Run-Around", a song that Popper composed. In 2021, Blues Traveler's album "Traveler's Blues" was nominated by the Recording Academy for "Best Traditional Blues Album" for the 2022 GRAMMY Awards. Solo work In 1990, Popper began to perform occasional solo concerts in addition to touring with Blues Traveler. Several songs that originated as Popper's solo pieces have become part of Blues Traveler's repertoire, and vice versa. Bolstered by Blues Traveler's mainstream success, Popper released a solo album, Zygote, in 1999, and toured in support of it with his own John Popper Band. The album was produced by Terry Manning, and the backing band consisted of longtime friends Dave Ares, Crugie Riccio, and Rob Clores of Cycomotogoat, with drummer Carter Beauford of Dave Matthews Band. The album's release came less than three months after Popper's heart surgery, and only days after the death of Bobby Sheehan, Popper's bandmate and best friend. The subsequent tour was canceled midway due to poor ticket sales, and Popper instead took the time to focus on his health. Popper has co-written songs with Trey Anastasio, Warren Haynes, Chris Barron, and Jonny Lang. He also frequently appears as a guest performer with musicians both famous and obscure, from a diverse variety of genres. He has performed with, among others, jam bands Spin Doctors, Dave Matthews Band, Phish, and most recently, the Allman Brothers Band in 2009; bluesmen Eric Clapton and B.B. King; singer-songwriters Jason Mraz and John Mayer; saxophonist Karl Denson; San Francisco's Culann's Hounds; heavy metal band Metallica; rock trio ZO2, and even with the Hungarian Ambassador to the United States, András Simonyi. He sat in with the Smashing Pumpkins on the second day of their acoustic 1997 Bridge School Benefit appearance, contributing harmonica for their song "Porcelina of the Vast Oceans"; Popper's solo garnered major applause from the audience. He also performed with the Grateful Dead at a tribute to Bill Graham in 1991. Popper played the harmonica on Hanson's album This Time Around in 2000, for which he performed on "If Only" and "In the City." He also composed, wrote, and performed the theme song for the ninth season of the sitcom Roseanne. In 2017 and 2018, Popper began to play solo acoustic performances across the