It's been a busy — and star-studded — few days in NYC for Jake Gyllenhaal! He kicked things off last week at the NY Knicks game with Ben Stiller, Christine Taylor, and Spike Lee, and continued the famous fun with a weekend meeting alongside Jude Law. The celebrity encounters kept coming on Sunday when Jake mingled with A-listers including Isla Fisher and Sarah Jessica Parker at Jerry Seinfeld's 59th birthday bash. In the middle of it all, Jake managed to make his regular spin class at Soul Cycle in Union Square, where he's been known to pack the house with female fans despite his new relationship with Emily DiDonato. Clearly Jake's had a fun few days as NYC's most popular — click through to see all the stars that made his hang list!