The BBC Singers are a British chamber choir, and the professional chamber choir of the BBC. One of the six BBC Performing Groups, the BBC Singers are based at the BBC's Maida Vale Studios in London. The only full-time professional British choir, the BBC Singers feature in live concerts, radio transmissions, recordings and education workshops. The choir often performs alongside other BBC Performing Groups, such as the BBC Symphony Orchestra, and is a regular guest at the BBC Proms. Broadcasts are given from locations around the country, including St Giles-without-Cripplegate and St Paul's Knightsbridge.