According to Digital Spy UK (via Billboard), the songs are from a 2010 session for 21 with producer Fraser T Smith, who wrote Adele's "Set Fire To The Rain."

The first track "Never Gonna Leave You" is a ballad that has her sweetly singing "you're the only one I want," while "You'll Never See Me Again" has her spitting that venom as she did so well on 21 swearing she's learned to live without him.