Basically its like karaoke, but you don’t actually sing – you lip-sync along with your chosen song. I pre-selected the songs (to ensure appropriateness) and brought about 20 songs and they took turns signing up for their picks. I did about 1/2 popular songs and 1/2 disney movie songs. They repeated some in the second round. Some girls did duets (even if the song wasn’t a duet). 
Here are the songs I used – they could sign up for 1 song per round, and we did 2 rounds:
DISNEY/MUSICALS
“LET IT GO” (FROZEN- DEMI LOVATO POP VERSION) _____________________
“LOVE IS AN OPEN DOOR” DUET (FROZEN) _____________________
“A WHOLE NEW WORLD” DUET (ALADDIN) _____________________
“PART OF YOUR WORLD” (LITTLE MERMAID) _____________________
“COLORS OF THE WIND” (POCHAHONTAS) ____________________
 “I’LL MAKE A MAN OUT OF YOU” (MULAN)_____________________
“POPULAR” (WICKED THE MUSICAL) _____________________
MODERN (2000’S TO PRESENT)
“IF I DIE YOUNG” (THE BAND PERRY) _____________________
“CALL ME MAYBE” (CARLY RAE JEPSON) _____________________
“YOU BELONG WITH ME” (TAYLOR SWIFT) _____________________
“BREAKAWAY” (KELLY CLARKSON) _____________________
“SINCE U BEEN GONE” (KELLY CLARKSON) _____________________
“SOMETHING ‘BOUT LOVE” (DAVID ARCHULETA) _____________________
“ROAR” (KATY PERRY) ____________________
“I WILL WAIT” – (MUMFORD & SONS) ____________________
“GOOD TIME” DUET (OWL CITY)_____________________
“HEY THERE DELILAH” (PLAIN WHITE T’S) _____________________
“BRAVE” (SARA BAREILLES) _____________________
The Disney movie songs actually turned out much better because they could sort of act along with them. If I ever do this again I would do more Disney and less pop. They really preferred the Disney songs (and most knew all the words).