Nero and Knife Party will join Tulisa in playing Saturday, July 7 at the London-based music event and will precede headliner Drake and special guest Nicki Minaj.
Pitbull and Cher Lloyd are joined by A$AP Rocky and Stooshe on Sunday, July 8 and will precede headliner Rihanna and special guest Calvin Harris.
Further artists previously confirmed for the weekend are Example, Jessie J, J Cole, Labrinth, Professor Green and Rizzle Kicks.
Wireless will take place in London's Hyde Park with tickets for the event on sale now.
Watch the music video for Pitbull's 'International Love' below: