Justin Timberlake: 'In Time' for 'Letterman'!

Justin Timberlake gives a thumbs up to fans and photographers outside The Ed Sullivan Theater on Wednesday (October 26) in New York City.

The 30-year-old entertainer (in a DSquared2 Classic suit) taped an appearance on The Late Show With David Letterman to promote his new movie, In Time.

Co-star Amanda Seyfried recently sat down with PopSugar and dished on working with Justin a second time (the two appeared in 2006′s Alpha Dog).

“He’s just as easy going as he possibly can be. You can see our chemistry just reflects our dynamic, on set, off screen,” she said. “I respect him. I enjoy his company and we worked together really well.”

10+ pictures inside of Justin Timberlake arriving at Letterman…