I am grateful for all the people who have stuck with me all these years and still greet me as a friend. #ThankList pic.twitter.com/HxLiZU1Euc

— Betty White (@BettyMWhite) November 25, 2015

#TBT just a little at the #Grammys last year pic.twitter.com/CYNn6bFUiJ

— The Band Perry (@thebandperry) December 3, 2015

I am grateful for my pie baker. pic.twitter.com/KuY1wC7NAK

— Jason Mraz (@jason_mraz) November 27, 2015

I loved getting all dressed like a lady for Frank tonight #Sinatra100 Tony+ Daddy + Jack Daniels= a swinging bday! pic.twitter.com/BZW9tObosG

— The Countess (@ladygaga) December 3, 2015

En Sinatra mood esta noche en Las Vegas. abrazos ! pic.twitter.com/lst4BThL9i

— JUANES (@juanes) December 3, 2015

Backstage getting mommy advice from @aliciakeys.

A photo posted by John Legend (@johnlegend) on Dec 3, 2015 at 1:40am PST

Yesterday evening on our way to celebrate #sinatra100 ... All The Way! Hier soir, en route vers la scène pour le #sinatra100 #atelierversace

A photo posted by Celine Dion (@celinedion) on Dec 3, 2015 at 12:32pm PST

Backstage with Lady at the #Sinatra100 show. It airs Sunday on CBS.

A photo posted by Tony Bennett (@itstonybennett) on Dec 4, 2015 at 7:03am PST

The first time I got to attend the Grammy's with my beautiful date, my mother 🙂 #tbt #isntshelovely

A photo posted by Kelly Clarkson (@kellyclarkson) on Dec 3, 2015 at 3:00pm PST

Happy birthday my brother HOV!

A photo posted by Sean "Diddy" Combs (@iamdiddy) on Dec 4, 2015 at 9:35am PST