(Also, check out highlights fromDay TwoandDay Three.

Fans screamed every word to guitar-driven track Void and every letter to N-Y-M-P-H-O-L-O-G-Y.

He explained the situation behind his long absence.

Blink-182 Cracks Dick Jokes, Melanie Martinez Enters ‘Portals’ Era at Lollapalooza Day Four

The heartwarmingly foul Blink-182: Mark Hoppus, Travis Barker, and Tom DeLonge (from left)SACHA LECCA FOR ROLLING STONE

His recovery served him and those who caught him at Lolla well.

He joked, We might fuck it up, but you wont know anyway.

With You.He also welcomed an unexpected guest: Chance the Rapper.

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Melanie MartinezSteven Nunez for Rolling Stone

An early supporter of the artist, Chance shared his gratitude for the rising star.