Justin Bieber was spotted showing his support to fellow singer Justin Timberlake as he was seen making his way into the singer's one-off gig in London last night. However, it seems that most people were interested in the mystery brunette who was apparently seen accompanying the Canadian singer.

The 'Boyfriend' singer was seen being escorted into the Forum where the 'Suit & Tie' singer held a one night only concert night just moments after his energetic performance at the BRIT Awards earlier in the evening.

Sources say Biebs and his pretty date arrived together to the event in Kentish Town, but went to great lengths not to be seen together.