Don't You Have Somewhere To Be? Kanye West Heads To Greece, Leaving Behind Baby Mama Kim & Baby North West

New dad Kanye West seemed preoccupied this weekend as he was snapped on a luxury boat in Greece's Aegean Sea while Kim Kardashian tends to his newborn daughter North back in the states, and RadarOnline.com has the pics for you.

The College Dropout is internationally promoting his new album Yeezus, but clearly seemed like he wanted to be back in the states with his daughter and baby mama. (Funny enough, he passed on attending the family's trip to Greece, which was later broadcast on Keeping Up With The Kardashians.)

"Everyone around him seemed to be enjoying the day, laughing and joking but Kanye kept to himself," a source told MailOnline.com, adding that "he didn't seem to be having much fun."

And from the pics, it looks as if the New Workout Plan singer might want to devise a workout plan of his own, as it seems like he's packed on a few pounds this summer.

The world's most famous socialite, in the meantime, has been resting at the Kardashian-Jenner property in Calabasas Calif., having yet to make a formal public appearance since giving birth earlier this summer -- or show her baby to the clamoring public.