Irina Shayk is the 2011 SI Swimsuit covergirl

Russian model (and Cristiano Ronaldos girlfriend) Irina Shayk was unveiled as the 2011 Sports Illustrated cover girl last night, when 10 of the models went on Letterman, read a Top 10 list, and helped unveil a huge billboard outside.

CBS has a short clip of it here, including Shayk, Alyssa Miller and the always fantastic Chrissy Teigen. Chrissy of course was at the Grammys in LA on Sunday, then flew overnight to New York to do Letterman on Monday and the Today Show this morning. A schedule like that is why I rarely date international supermodels anymore.