Lena Meyer Landrut

With the holiday weekend among us, stars like Alyson Hannigan and Eva Longoria were spotted celebrating with family and friends. Rita Ora also enjoyed her Friday by partying in London with Calvin Harris. Check out the OK! Quick Pics gallery below to see what else your favorite celebrities were up to today! News: Jennifer Hudson Signed as Judge on 'American Idol'—But She's Not the Only Returning Alum! Watch: Why is Lena Dunham So Angry? Photos: Cute Team Gear for the Fashionista Sports Fan What do you think of Rita Ora's new colorful highlights? Tell us in the comments and tweet us @OKMagazine!

Lena Dunham is not too happy! The Girls creator and actress responded to the making of a recent porno that references the hit HBO show. It actually calls out Lena's scripted show right in the title. Uncomfortable? Well, Lena must think so. She responded to the parody on her Twitter account, listing the reasons why she didn't think he was worthy of a laugh.  What do you think about Lena Dunham's response? Tweet @OKMagazine and leave a comment below. More Videos You'll Love: Details on Robin Roberts' Upcoming Memoir Partying With Justin Bieber Could Cost You—$5 Million! Why Kimberly Elise is Similar to Her Character on VH-1's 'Hit the Floor'   Photo credit:  Getty Images