We’ve spotted Mabel’s Labels on J.P. Rosenbaum’s Instagram.

On the sippy cup is a personalized Mabel’s Labels Fordham label gifted by Jewels and Pinstripes in his It’s Fun to be One Birthday Gift Bag.

Click Here to see the pic!

More celebrity sightings of Mabel’s Labels include Reese WitherspoonGisele, Vanessa LacheyLisa D’AmatoMarcia Cross, Kimberly Van Der Beek, Selma Blair, Ben AaronHeidi Klum, Sarah Jessica Parker, Eva Amurri MartinoRachel Weisz, Joey LawrenceJessica Alba, Denise Richards and Jennifer Garner.