British pop star Lily Allen has fuelled speculation of a reconciliation with ex-boyfriend ED SIMONS - after the singer was spotted wearing an engagement ring. The 22-year-old was reported to have split with the Chemical Brothers DJ last month (Jan08) just weeks after the singer miscarried the couple's baby. Allen was seen leaving Simmons London home last weekend (16-17Feb08) sparking rumours they may have decided to revive their relationship. And now the star has been seen sporting a diamond band on her engagement finger - prompting further reports the couple may be back together. The singer was photographed happily showing off the ring at the premiere of Scarlett Johansson's new movie The Other Boleyn Girl in London on Wednesday (20Feb08) night.