Rapper Big Sean and girlfriend Ariana Grande put on some PDA

 

Rapper Big Sean, 26, is dating pop star Ariana Grande, 21, and on Tuesday after they performed together at

 the A Very Grammy Christmas event in LA, the two lovebirds kissed and held each other backstage. Big Sean 

shared the intimate photos on instagram yesterday and wrote "Me and my Ari"
Photos from the event below...