On a sunny day in September 2015, Rod Stewart took to the stage in London's Hyde Park to bring to a close BBC Radio 2's annual Festival in a Day. In front of 50,000 people, Rod delivered not his usual stadium set but a bespoke selection of hits from his back catalogue spanning his career, including Gasoline Alley, Angel, In a Broken Dream and The Killing of Georgie (Part 1 & 2), plus Faces classics such as Ooh La La and the blues standard Rollin' and Tumblin', a number that Rod used to perform with Long John Baldry back in the day. To close the set Rod brought on his old pal guitarist Jim Cregan to help him perform his 1978 hit I Was Only Joking. All in all, a memorable and unique concert that is unlikely to be repeated anytime soon.