The two singers are set to join previously-announced co-host Miley Cyrus at the awards show which will be conducted this summer.
Justin Bieber is booked to make a live performance at this year's MuchMusic Video Awards and will likely perform his hit single from "My World 2.0". Also confirmed to rock the Canadian awards show, which will be held on June 20, is the "I Kissed a Girl" hitmaker Katy Perry.
Like Justin who might do cross promotion for his album, Katy who was snapped landing her luscious lips on Justin's cheeks at the 2010 Nickelodeon's Kids Choice Awards is also expected to sing her brand new song "California Gurls". The track is claimed as an answer to Jay-Z's smash hit "Empire State of Mind" and has been tentatively listed by FMQB to make its debut on May 25.
Beside having Justin Bieber and Katy Perry, the upcoming MuchMusic Video Awards will also have Miley Cyrus taking the duty as a co-host. The "Hannah Montana" actress reportedly will also perform her fresh material "Can't Be Tamed" in this ceremony.