VIDEO: Rob Gronkowski, David Ortiz star in Dunkin Donuts music video

If anyone wasn't already convinced New England Patriots tight end Rob Gronkowski is having the best offseason ever, he and Boston Red Sox designated hitter David Ortiz just dropped their first single.

"Sippin'" appears on the duo's debut album, "Summer Chill," a collection of songs celebrating their mutual love of Dunkin' Donuts' iced coffee. Three additional songs and videos will be released throughout the summer.