Can't help but think of Mac Miller's Tiny Desk performance of his song 2009 [1]. Mac started using weed heavily in his teens to cope with the stress of touring. 2009 was a big year for him: two major mixtapes, the cusp of fame and his intro to harder drugs. The song is celebration and acceptance and resignation, and totally unapologetic. He died of an OD two months after this performance at the age of 26.

1. https://youtu.be/QrR_gm6RqCo?t=699