Joining Jools in the studio are Brooklyn's The National, who return with songs from their acclaimed sixth album, Trouble Will Find Me. Million-selling Connecticut singer-songwriter and guitarist John Mayer performs numbers from his recent release, Paradise Valley. Cinematic pop trio London Grammar make their first appearance on the show with songs from their top ten debut album If You Wait. Seminal British rock outfit Graham Parker & The Rumour are also in the studio having recently reunited, with music from their first album in 32 years, Three Chords Good. From Rock Island, Illinois, folk-pop songstress Lissie returns to the show with numbers from rock driven second studio album Back To Forever. One of Mali's greatest exponents of the kora, Ballake Sissoko, is also in the studio performing music from his internationally acclaimed album At Peace.