FINNEAS: Optimist Tour 2021

Music lovers likely first met Finneas via the songs he cowrote and coproduced for his little sister, Billie Eilish. But the man made it into plenty of homes before her rise with his roles in film and TV -- particularly as Glee's Alistair -- and that charm and professionalism shows during his concerts. He's been known to sport a three-piece suit on stage, and his onstage setup has often also been limited to three pieces: a mic, a guitar and a keyboard rig (which includes backing tracks for his darkly sparkling brand of electronic pop). Even so, Finneas (often stylized as FINNEAS) has no problem inspiring wild screams from his audiences, who come for some combination of his clean-cut handsomeness, velvety voice and diary-like lyrics about love and lust. After the Los Angeles native became a staple of Eilish's shows, he broke out solo to sold-out gigs on the coasts, festival spots galore and a headlining tour named after his debut EP, Blood Harmony.