Natalie made a surprise appearance on stage during Role Model’s concert at Madison Square Garden tonight. As we all know, the singer co-stars with Natalie and Mark Ruffalo in “Good Sex,” Lena Dunham’s new film, which is currently being filmed in New York. There are a few reels on social media capturing the moment:

https://www.instagram.com/reel/DMq_BjvOCBh/?igsh=MTNlM2UyamQzMm0yZA==