Nothing warms the cockles of the heart, as I struggle towards the 8km mark, like the classic stadium-rock opening of Summer of 69. Suddenly it becomes possible to push on just that little bit further – even if, by this point, singing along is pretty much out of the question. As my training runs normally only last about 5km, I always forget this is on the playlist and, when those inimitable chords kick in, I can’t help grinning like an idiot.

Listen to the song here