Calvin Klein Throwing 21st Birthday Bash For Nick Gruber

01/20/2011 08:42 am ET | Updated May 25, 2011

Page Six reports that Calvin Klein is throwing a huge birthday bash for model and possible boyfriend Nicholas Gruber's 21st.

A source told the gossip column that the invite reads: "In the spirit of the New Year and in celebration of Nick Gruber's birthday, please join Calvin Klein for dinner and drinks at Indochine Jan. 21 at 9 p.m. It will be the hottest ticket for New York's gay and fashion elite." Ours must have gotten lost in the mail.

Klein and Gruber have been attached at the hip since last year. Check out where they've been lately.

(All images by Getty and

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