Representatives at Empire Management this morning declined to comment on reports Lily Allen has gone separate ways with the management firm.

The company has guided Allen's career over the last two years, during which time the pop singer has emerged as a bona-fide international star. Her debut album "Alright, Still" (Regal) is certified double platinum in the United Kingdom for shipments in excess of 600,000 units.

London-based Empire, which is helmed by Neale Easterby and Richard Ramsey, has the likes of Natasha and Daniel Bedingfield, Lucie Silvas and The Feeling on its books.

"Alright, Still" has sold more than 374,000 copies on Capitol in the United States, according to Nielsen SoundScan, after opening at No. 20 on The Billboard 200 in February.

But Allen's U.S. strategy was thrown into disarray when U.S. authorities recently revoked her work visa, forcing the artist to postpone a raft of stateside appearances.