Justin Bieber and Selena Gomez crashed a ritzy Malibu beach wedding. They were strolling on the beach when they heard Justin’s hit “One Less Lonely Girl” playing at the reception inside the historic and shi shi Adamson House. Justin snuck up on some guests and then hopped on the mic, saying … “We just crashed it. We heard a party so we decided to just come. So let’s party.” Justin and Selena only stayed for about 10 minutes to pose for pics, including some with the happy couple.