Lady Gaga reunited with producer RedOne for the track 'Gypsy' on her 'ARTPOP' album.
The singer returned to the studio with the hitmaker behind some of her biggest songs - including 'Just Dance', 'Poker Face' and 'Bad Romance' - as well as 19-year-old wonderkid Madeon.
Speaking to France's Fun Radio, she said: "[Madeon] is so amazing. He has such an understanding of music at such a young age. He reminds me of myself so much. He's obsessed, so obsessed with music.
"We worked on some amazing songs together. One song in particular I love so much. It's called 'Gypsy', we wrote it with RedOne."
The star has also previously said she worked with producers DJ White Shadow and Zedd on other tracks for the album.
As well as 'Gypsy', other confirmed songs for 'ARTPOP' include first single 'Applause', a sequel to Gaga's 2010 track 'Telephone' and 'Donatella', in tribute to fashion designer Donatella Versace, who is thrilled with the track.
In a letter to a gossip website she wrote: "I would like to thank Gaga for her geniality, creativity, incredible talent and super bitchiness. I am honored to be her friend and of course I love the song! Love, DV (sic)."
'ARTPOP' will be released on November 11.
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