If you've followed the Top 10 Twitter Pics over the past few weeks, you've probably noticed that singer Justin Bieber and British boy band One Direction tend to get a lot of retweets and shares. Bieber is, after all, the second-most followed on Twitter with more than 20 million followers, behind only Lady Gaga.
This week in pictures is no different.
Our friends over at Skylines sifted through 34.8 million unique pictures to compile a list of the most shared. Browse through the gallery above to see the top 10 Twitter -- err, rather, Bieber/One Direction -- photos from the week.