Tinchy Stryder performed at Radio 1's Big Weekend
Grime vocalist Tinchy Stryder and pop band N-Dubz remain top of the UK singles chart for the third week with their collaboration, Number One.
It is the first time a single called Number 1 has reached the top spot.
Meanwhile, in the album charts Bob Dylan held onto the top spot for a second week with his album Together Through Life.
His last chart topper was New Morning, released in October 1970, which went to number one that November.
Together Through Life is Dylan's seventh UK number one, his 33rd studio album and his 53rd album, including compilations and soundtracks.
Elsewhere in the charts Lady Gaga's The Fame moved up a spot to number two while Lilly Allen's It's Not Me It's You charted in third.
Ciara's record Fantasy Ride debuted in ninth place, followed by the only other new release in the top 10, which was Yusuf's Roadsinger.
La Roux remained in second place in the singles chart, compiled by the Official Charts Company, with their song In For The Kill.
At number three was Tiny Dancer (Hold Me Closer) - a collaboration between Ironik, Chipmunk and Sir Elton John.
Scottish dance DJ Calvin Harris, who appeared at Radio 1's Big Weekend on Saturday, was in fourth place with I'm Not Alone, which is the first single from his second album.