Singer-songwriter Lily Allen has taken to Twitter after fellow music star Joss Stone received an invite to the royal wedding and she didn't. 

The 'Not Fair' hitmaker joked on the social networking site (April 25) about the behaviour Stone might unleash at the exclusive function and wrote:

"Why does bloody Joss Stone get an invite and not moi? I sang at the Diana concert too!"

Referencing the Devon-born soul singer's casual marijuana habit, which she admitted to back in 2007, Allen added:

"she's a stoner though so she'll probably pull a whitey after her 2nd glass of champers and vom everwhere."

Watch Lily Allen and her sister talk about their clothing store, Lucy In Disguise, here: