The couple, dating since 2007, has recently been dogged by rumors they plan to split, with a source saying  'Things are not going as smoothly as (Biel and Timberlake) would want people to think they are.'

The stars then added to the speculation when they failed to deliver a scheduled promotional appearance at the launch of an Indiana Live Casino in Shelbyville, Ind., on March 13.

And their absence infuriated many members of the 8,000-strong audience.

Guest Marian Flemming says, 'It was ridiculous. They promised us that Justin and Jessica were going to be here, so we came down to check out the new casino and had hoped to see the two stars. When they did not show up, we simply felt cheated.'

Editor: Oh dear!