Kellan Lutz landed in NYC on Saturday and quickly slipped into his Calvins for a promotional appearance at Macy's in Herald Square. The underwear ads featuring his impressive six-pack are on billboards all over the city, but Kellan only gave a glimpse at his washboard abs in the store. He later used his newly verified Twitter account to thank the many fans that came out and made the afternoon special. He's spoken before about being happy to follow in the footsteps of fellow Calvin Klein model Mark Wahlberg, and Kellan's already feeling the positive effects of the revealing campaign. He recently said, "I won’t lie about it. . . I started getting text messages and calls from producers, and when I went into meetings for scripts, people were always commenting on the billboard and asking for pictures for their daughters."