Uraraka and Momo are standing at the door(which is only open a bit) the boys dorm rooms and they gesture for you to come over as well... They are all singing Call me maybe and they are singing it pretty well

Deku: I threw a wish in the well

Denki: Don't ask me, I'll never tell

Kirishima: I looked to you as it fell

Bakugo: And now you're in my way

Todoroki: I trade my soul for a wish

Mineta: Pennies and dimes for a kiss

Bakugo: I wasn't lookin' for this But now you're in my way

Deku&Denki&Kirishima: Your stare was holdin' Ripped jeans, skin was showin' Hot night, wind was blowin' Where you think you're goin', baby?

All the boys: HEY I JUST MET YOU! AND THIS IS CRAZY!!! BUT HERE'S MY NUMBER! SO CALL ME MAYBE!

Deku: it's hard to look right-

Mineta: At you baaaabyyyy!

All the boys: BUT HERE'S MY NUMBER! SO CALL ME MAYBEEEE!

Todoroki: And all the other boys try to chase me!

All the boys: BUT HERE MY NUMBER! SO CALL ME MAYBE!!!

the boys are all dancing and singing, not even noticing the three girls watching them