The singer, who has already been awarded the Critics' Choice prize for this year's Brit Awards, said that she is tired of hearing rappers claiming to be the best in the industry and would rather hear them sing about their personal lives.
She tweeted: "I'm bored of hearing so many of the new up-and-coming rappers spit about how sick they are and there gonna 'f**k up the game' (sic).
"I would rather here life stories and inspirational bars. Not 'I'm the best' bla bla bla'."
The 'Do It Like A Dude' star then went on to seek out fresh talent on YouTube, stating: "Ok so I'm going on a youtube talent hunt. I'm gonna tweet some videos I like... :)".
The singer recently insisted that her real fans shouldn't download music illegally.