Yep, some people actually play Justin Bieber songs at their weddings.
Newlyweds Rob and Jeanine McCool got the surprise of their lives when the Beeb and his sweetheart snuck into the Malibu Beach venue to surprise them, jumping on the mic and laughing, "We just crashed it. We heard a party so we decided to just come. So let's party."
The pair stuck around for about 10 minutes posing for happy snaps with the bride and groom and their starstruck young bridesmaids before continuing on their evening walk along the beach.
What a great addition to the wedding album!