Ciara was the surprise guest during Mindless Behavior’s show on the “Closer to My Dreams” tour at Boston’s House of Blues. The R&B singer came out to support the young heartthrobs, singing and dancing along to the remix of their single “My Girl.” “Me and @MindlessBhavior back stage! They’re so adorable! Showtime! Ow!” tweeted CiCi. Watch them kick it on stage.