Radio 1 must build on last year’s 50th anniversary celebrations to ensure the network “evolves”, controller Ben Cooper has told Music Week.

In the Q3 RAJAR figures for 2017, Radio 1’s audience stabilised at 9.7 million. Cooper is hopeful of a boost from the birthday events including Live Lounge Month featuring Jay-Z, Pink, Foo Fighters and Miley Cyrus.

“It was a phenomenal celebration of not only music of today, but also looking back at some of the records and songs ...