SINGER Rick Astley has gone viral once more after performing at last weekend's 'Let's Rock London' festival.

The Newton-le-Willows musician, most famous for his 1987 hit 'Never Gonna Give You Up' which became an Internet sensation a few years ago, treated the audience to an incredible cover of Bruno Mars and Mark Ronson's recent chart smash 'Uptown Funk'.

The performance has had more than 800,000 views on YouTube already.

View the video below: