starlightshoe:

• i gotta feeling
• dynamite
• like a g6
• dj got us fallin in love
• moves like jagger
• tik tok
• party in the usa
• paper planes
• miss independent
• hey there delilah
• PARTY. ROCK. ANTHEM
• many others feel free to add

Not quite Gen Z, not quite childhood, but definitely fitting:

Bad Day, All The Right Moves, Gives You Hell, Apologize, Fireflies