Wallace – who got his start playing piano aged 11 in church - whipped out a cover of Al Green’s "Let’s Stay Together", surely one of the greatest songs ever written. And if that wasn't enough, he followed it up with a final anniversary greeting to the festival on its 20th birthday bringing the crowd together for a bit of Stevie Wonder's "Happy Birthday". Watch the whole glorious six-minute performance below!

Wallace's debut album dropped back in the early summer this year and his End of the Road appearances marked the end of a successful run of dates across the UK and Europe. His cover was part of a secret session for Best Fit at this year's End of the Road, which also saw pop-up sets from Prewn, Jeffrey Lewis, Madra Salach, Jasper Llewellyn, Will Doyle, Jordan Patterson, Morgan Nagler, Rostam Batmanglij, TTSSFU, Way Dynamic, Modern Woman, Cleo Reed, Hayden Thorpe and thredd.

Best Fit's secret sessions have become a key part of End of the Road each year, bringing together artists from across the line-up in a series of short sets, exclusive covers, collaborations, and live interviews and Q&As. Past guests have included Lucy Dacus, St Vincent, Wilco's Jeff Tweedy, Moses Sumney, Laura Marling, Patti Smith, and Frightened Rabbit - who played a now iconic version of "The Modern Leper".