Ja Rule lashes out after 50 Cent buys 200 concert tickets to mock him

Ja Rule is hitting back at 50 Cent for trolling him by buying 200 tickets to one of his concerts, only to leave the seats empty.

The New York rappers are engaged in a bitter feud which has gone on for nearly 20 years and involved other hip-hop artists, including Eminem and Busta Rhymes.

50 Cent got onto Ja Rule's Instagram account to taunt him over the weekend, announcing he had bought 200 front row tickets to an upcoming show the 'It's Murda' hitmaker is holding in Texas next month.

He claimed to have taken advantage of a Groupon offer that made the tickets US$15 each, meaning he spent US$3000 (NZ$4600) on the prank.

The 'In Da Club' hitmaker even photoshopped himself onto a group of empty seats at an event and edited together footage depicting Ja Rule performing to an empty room of seats, too.

"What a show, I mean just f**king great," 50 Cent captioned one of his trolling posts.

"Do it again - my kid went to the restroom. LOL."

Ja Rule has fired back on Instagram with two posts - one a mock-up of 50 Cent in drag, the other a photo of him with a person in drag and his G-Unit associate, Young Buck. The second features sex toys photoshopped onto it.

50 Cent is labelled an "old ho ass n**ga" in one of Ja Rule's posts.

Beef between the pair has included several diss tracks and violent confrontations in real life, all seemingly starting with Ja Rule being robbed at gunpoint by a 50 Cent associate in 1999.

Although in 2011 Ja Rule announced the feud had ended and in 2013 confessed that 50 Cent had won it, the recent swipes at each other prove it's definitely been resurrected.