First John Legend put his pad up for sale and now The Observer reports that Scottish singer-songwriter K.T. Tunstall has sold her duplex at 525 East 11th Street for $1.5 million, about $75,000 less than what she bought it for in 2008. The 2-bedroom, 2.5-bath home with 540-square-foot terrace went to one Farsad Golnaz.