PHARRELL Williams' feelgood hit Happy has climbed to the top of the singles chart for a third time - the first track to do this for 57 years.

The song, which features in the Despicable Me II film, is starting a fourth non-consecutive week at number one.

This impressive run means Pharrell is only the third act in history to hit the top spot on three separate occasions with the same song, and the first in 57 years to achieve this feat, said the Official Charts Company.

The other two to reach the top three times were Frankie Laine with I Believe in 1953 and Guy Mitchell with Singing The Blues in 1957.