The two beloved felines posted for selfies with lines of fans at Bleeker Street Records.
The video for Cat Summer also features Nala Cat, Hamilton the Hipster Cat and Oskar's companion, Klaus, extolling the virtues of summertime grilling, croquet, and slip 'n' slides.
The video is actually a pseudo-advertisement for Friskies, which will donate one meal to shelter cats for every view the video receives, up to 1 million views.
Notable deaths of 2014 [PHOTOS]
Hilary Duff 'open to' Lizzie McGuire reunion