This Week in Celebrity Twitpics (PHOTOS)
It was all about family for some celebrities this week, and they weren't shy about sharing their quality time on Twitter.
Which singer paid a visit to her grandfather this week?
Bieber recently kicked off his Believe tour and made two stops in L.A. for his famous friends and Beliebers alike. Stars like Heidi Klum, Katy Perry and Bieber's girlfriend Selena Gomez were all in attendence.
In other Kardashian Twitpic sightings, Khloe and Kim spent some quality time together -- in their pajamas.
Rihanna got to spend some time with her family as well, when she visited her grandfather. She posted a series of Twitpics as she was going through some keepsakes from her grandmother who just recently passed away three months ago.
For more celebrity Twitter photos, check out the gallery, above.