" star Channing Tatum
was David Letterman
's guest on "Late Show
" (Weeknights, 11:35 p.m. ET on CBS) Wednesday night.Tatum showed off his uncanny impersonation of his "Magic Mike
" co-star, Matthew McConaughey
."Alright, alright, alright," he grinned. "I see a lot of lovely ladies in the house tonight. I like that. How are you
doing, Mr. Letterman?"As he carried on, Letterman started to feel uncomfortable and joked, "Now it's ...