Which British singer now signed to Epic Records placed ahead of English pop/R&B boy band JLS on the fifth series of The X Factor? 
JLS: JLS (an initialism of Jack the Lad Swing) were an English pop/R&B boy band, which consisted of members Aston Merrygold, Oritsé Williams, Marvin Humes, and JB Gill, originally formed by Williams. Alexandra Burke: Alexandra Imelda Cecelia Ewen Burke (born 25 August 1988) is a British singer and stage actress. Alexandra Burke:  She has been signed to Epic Records, RCA Records and Syco Music.
i don't know