E! News can confirm that the Girls star and co-creator, along with the country superstar, attended an after-party at Asselina restaurant in midtown Manhattan. J. Crew's creative director, and Girls guest star, Jenna Lyons, Mean Girls star Daniel Franzese as well as SNL cast members Aidy Bryant, Bobby Moynihan, Vanessa Bayer, were also in attendance.
Luckily for us, Franzese added several snapshots from the bash to his Instagram account.
"Live from New York it's the @nbcsnl after party with @girlshbo star @lenadunham and #meangirls homie #RajivSurendra and me @whatsupdanny!," he captioned one photograph with Dunham and his Mean Girls co-star Rajiv Surendra.