Kate Upton: So Happy Cameron Diaz Joined Twitter!

Kate Upton carries two cell phones while heading out of Madison Square Garden on Saturday night (November 16) in New York City.

The 21-year-old model and actress watched as the New York Knicks fell to the Atlanta Hawks 110 – 90 that night.

PHOTOS: Check out the latest pics of Kate Upton

“I am SO excited the most amazing person has FINALLY joined twitter!! @CameronDiaz,” Kate recently tweeted about her pal Cameron Diaz.

Cameron tweeted back, “I miss you so much little lamb!”

In case you didn’t know, Kate and Cameron are starring together in the upcoming movie The Other Woman, which is about a woman who teams up with her boyfriend’s wife to plot mutual revenge.