Justin Bieber  singer airport london uk MrPaparazzi

Justin Bieber landed at London's Heathrow airport today, and the 17-year-old pop star is thrilled to be kicking off his world tour. Justin tweeted, "#MYWORLDTOUR is back. it's time excited 2 get back out on tour and do what i love. time for the #MYWORLDTOUR to go worldwide. time 4 me and the fans and the music. im ready."

Bieber's first concert date is at the Liverpool Echo Arena next Friday, and no word on whether girlfriend Selena Gomez will visit him on the road, but we're guessing she'll make the trek across the pond at least once over the course of the next month!