The singer shows his appreciation in Cologne

Justin Timberlake left a massive £2,450 tip at a Cologne nightclub this week.

The singer, 33, is said to have personally thanked waitresses working at the Crystal Cologne bar at the end of the evening before giving them his very generous gratuity.

‘We were really amazed,’ says staff member Nina Blum.

Justin arrived at the club with a 25-strong entourage after playing a date on his The 20/20 Experience world tour in the German city.

He’d believed to have been invited by the owner and was given drinks on the house.

Justin – who’s been married to actress Jessica Biel since 2012 – partied at the venue until 4.20am and it seems he had a lot of fun.

‘He was in a great mood,’ boss Yunus Arslan tells The Sun.

‘A real gentleman.’

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Anna Duff