My music brain lights up when I think about songs that either tell you to 'be yourself' or literally sing about wanting to be somebody else — like, wanting to be you. I keep a goofy little playlist of tracks that do exactly that, and a few favorite examples always make me smile.
For unapologetic self-acceptance there's 'Born This Way' — it flat-out celebrates being you and tells people to wear who they are proudly. For a simpler, rockier imperative to just be yourself, 'Be Yourself' by Audioslave is perfect; the chorus hits like a friend that won't let you fake it. Then you have the playful side: 'I Wanna Be Like You' from 'The Jungle Book' is cheeky and literal — the monkey king sings about wanting to mimic someone else, which flips the usual message into something fun.
On the darker or more obsessive end, 'I Wanna Be Your Dog' by The Stooges imagines being attached to another person in a raw, borderline-uncomfortable way, while a lot of alternative and pop songs with titles like 'If I Were You' (various artists) explore stepping into somebody else's skin to understand them or to imagine different choices. I’m constantly surprised by how the same idea — being you, wanting to be you, or wishing I could be in your shoes — shows up across genres, from Disney to punk to pop, and it keeps me reassessing what I want from a song: affirmation, yearning, or just a fun imitation. It’s the kind of theme that never gets old for me.