銆€銆€Singer Justin Bieber performs at the O2 Arena in London on Monday, March 4, 2013. [Photo: UPI/Rune Hellestad/eyevine/CFP]

銆€銆€Justin Bieber has apologized for his late appearance at London's O2 Arena.

銆€銆€The teen idol was scheduled to start his show on Monday, March 4, 2013 at 8:30 p.m. However, he didn't hit the stage until 2 hours later.

銆€銆€Bieber insists he was only 40 minutes late, noting there were 3 opening acts scheduled to perform until 9:35 p.m.

銆€銆€This has left many of the 19-year-old's British fans fuming, given that many of them faced either waiting him out or missing their last trains home.

銆€銆€Bieber is playing at the O2 Arena until Thursday.