Kate Tempest's Everybody Down album cover acquired by the National Portrait Gallery

Dav Stewart photographed Tempest in 2013 in a makeshift studio in his East London flat. He (and art director Luke Eastop) have worked with Tempest on many of her releases over the years.

Tempest's portrait will form part of a touring exhibition titled Picture The Poet (comprising more than 50 pieces of art), which will also see Carol Ann Duffy, Simon Armitage and Benjamin Zephaniah featured. Tempest will be the youngest poet in the collection, which is aimed at inspiring youngsters to improve their literacy skills, and opens in Lincoln today (1 May). For more info, head here.

This isn't the first time promotional shots of musicians have gone on display, with the gallery already owning the Back To Black shot of Amy Winehouse (by Mischa Richter) and Madonna's Ray Of Light image (by Mario Testino).

Tempest will be performing at Brighton's The Great Escape later this month (14 May).