Frontman Dave Grohl also shared his advice for his daughter, Violet Grohl, and other young musicians Foo Fighters stopped by The Late Show to perform their recent song, “Window.” The anthemic rock number appears on the band’s new LP, Your Favorite Toy , released last month. Frontman Dave Grohl also sat down with Stephen Colbert to discuss the album, his experiences after Nirvana ended, and how it feels to have his daughter Violet Grohl unveil her debut album as Foo Fighters release their 12th. “When Nirvana ended I didn’t know what to do,” Grohl told Colbert. “I didn’t know if I wanted to continue playing music. It made me sad to think of playing in another band. Losing Nirvana, losing Kurt [Cobain], was a really dark, emotional experience.” He recalled driving on a country road in Ireland and wanting to “disappear.” He spotted a hitchhiker wearing a Kurt Cobain tee-shirt. “To me, I thought, ‘Okay this is the universe telling me to continue,'” Grohl said. “I thought, ‘Okay, I need to keep going.…