Justin Bieber: Justin Timberlake Concert Goer

Justin Bieber keeps a low profile in sunglasses as he makes his way into the Justin Timberlake concert on Wednesday night (February 20) at The Forum in London, England.

The 18-year-old pop singer enjoyed the show before going home to write some songs.

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“up all last night writing. very very tired,” he later tweeted. “gonna rest up. Manchester tonight. #BELIEVEtour”

Earlier in the day, Justin was spotted heading into Harrods department store where he did a little shoe shopping with his friend will.i.am.