US band Extreme perform ahead of Def Leppard's concert at Parque Viva, Alajuela, Costa Rica on October 27, 2026. (Photo by Ezequiel BECERRA / AFP via Getty Images)

US band Extreme perform ahead of Def Leppard's concert at Parque Viva, Alajuela, Costa Rica on October 27, 2026. (Photo by Ezequiel BECERRA / AFP via Getty Images)

US singers Nuno Bettencourt (L) and Gary Cherone from the band Extreme perform ahead of Def Leppard's concert at Parque Viva, Alajuela, Costa Rica on October 27, 2026. (Photo by Ezequiel BECERRA / AFP via Getty Images)

US singer Gary Cherone from the band Extreme performs ahead of Def Leppard's concert at Parque Viva, Alajuela, Costa Rica on October 27, 2026. (Photo by Ezequiel BECERRA / AFP via Getty Images)

US singer Gary Cherone from the band Extreme performs ahead of Def Leppard's concert at Parque Viva, Alajuela, Costa Rica on October 27, 2026. (Photo by Ezequiel BECERRA / AFP via Getty Images)

US singer Nuno Bettencourt from the band Extreme performs ahead of Def Leppard's concert at Parque Viva, Alajuela, Costa Rica on October 27, 2026. (Photo by Ezequiel BECERRA / AFP via Getty Images)

US singer Nuno Bettencourt from the band Extreme performs ahead of Def Leppard's concert at Parque Viva, Alajuela, Costa Rica on October 27, 2026. (Photo by Ezequiel BECERRA / AFP via Getty Images)

WEST HOLLYWOOD, CALIFORNIA - OCTOBER 27: (L-R) Kristin Bertell, Chief Philanthropy Officer, City of Hope, Alissa Pollack, EVP, Global Music Marketing, iHeartMedia, Lawrence Mestel, Founder & CEO, Primary Wave Music, Melissa Etheridge, Robert Stone, CEO, City of Hope and Evan Lamberg, President, Universal Music Publishing Group, attend City Of Hope's 2026 MFEI Spirit Of Life Gala at Pacific Design Center on October 27, 2026 in West Hollywood, California. (Photo by Matt Winkelmeyer/Getty Images)