It's time to try Capital's latest quiz where we ask you to put on your best Sherlock Holmes outfit to work out who's hiding behind the disguise. There's masks, sunglasses and even Tiger costumes. See how many you can spot and let us know your score.
Justin Bieber Wears Gas Mask Out Shopping In London In Between 'Believe' Tour Dates
The 'Boyfriend' singer shocked passers by with his choice of attire for a trip out in the capital this week.
Justin Bieber could be seen wearing a gas mask as he went shopping in London this week.
The 'As Long As You Love Me' star has been in the UK on his 'Believe' world tour and stopped by Acne studios for some retail therapy.
The Canadian teen teamed his mask with a leather ensemble and his trademark chain aound his neck.
The singer has often been known to use a disguise to hide his appearance from the paparazzi.
Check out a picture of Justin Bieber in his gas mask out in London below: (Picture: INFPhotos )
Meanwhile, Justin will continue his UK tour tomorrow night (27th February) in Birmingham before a gig in Nottingham and a four-night residency at London's O2 Arena.