Dave Matthews has dropped out of the FireAid benefit concert due to a family medical issue. "Due to a critical illness in the family, Dave Matthews is unfortunately unable to perform at the FireAid and MusiCares benefits this week,

Dave Matthews has pulled out of the FireAid benefit concert—where was set to perform alongside John Mayer—due to a “critical illness” in his family.

Dave Matthews, who was part of a star-studded lineup of performers at a Los Angeles concert to raise money for wildfire relief, said on Wednesday he would not be able to perform.

Matthews had been set to take the stage at the Jan. 30 benefit concert in the wake of the devastating Los Angeles wildfires.

CNN has reached out to a representative for Matthews for comment. The FireAid benefit concert, a music event set up to aid the relief efforts following the deadly and devastating Los Angeles wildfires, is set to take place on Thursday at the Kia Forum and the new Intuit Dome, both located in the LA city of Inglewood.

Dave Matthews has been forced to withdraw from the LA benefit concert hours before the show starts due to a ‘critical illness in the family’. The Crash Into Me singer was set to perform in a duet with John Mayer at FireAid tonight (January 30) along with sets from Lady Gaga , Billie Eilish , Stevie Nicks and Sir Rod Stewart.

Dave Matthews and John Mayer (appearing together), Earth Wind & Fire, Gracie Abrams, Green Day, Gwen Stefani, Jelly Roll, Joni Mitchell, Katy Perry, Lady Gaga, Lil Baby, P!nk, Red Hot Chili ...

Singer was scheduled to perform with John Mayer for the first time at the FireAid concert on Jan. 30, followed by a Grateful Dead tribute at the MusiCares event on Jan. 31

Lady Gaga closed the FireAid benefit concert with a heartfelt new song she co-wrote with her fiancé, Michael Polansky, to bring hope to those affected by the LA wildfires.

St. Vincent performs with Krist Novoselic of Nirvana onstage during the FireAid Benefit Concert for California Fire Relief. (John Shearer/Getty Images for FireAid)

Musician Alanis Morissette and rock singer Rod Stewart took to the stage with other big names like Green Day, Billie Eilish, Lady Gaga, Joni Mitchell and Jelly Roll at the FireAid benefit concert on Thursday (January 30) to raise funds for people affected by deadly wildfires in California this month, Reuters reports.

Fans in the Intuit Dome wondering what hit them may have belatedly realized they were witnessing the closest thing to a Nirvana reunion we’ll get: The band’s three surviving members — Krist Novoselic,