Paul McDonald and Nikki Reed
10/15/2011 AT 12:15 AM EDT
Is their secret
out? The highly anticipated wedding
of Nikki Reed and Paul McDonald
is set for Sunday in Malibu, E! Online
But, not so fast, a source tells PEOPLE. Oct. 16 "I dos" can't be possible: Their wedding singer has another gig!
alum "Stefano Langone
will be performing at it and he's in Las Vegas performing for Eva Longoria
and George Lopez at their annual "Padres Contra El Cancer
," the source says, calling the report false.
actress and the American Idol
contestant met in March
and became engaged in June
McDonald, 26, and Reed, 23, were introduced on the red carpet of Red Riding Hood
. "We crossed paths on this random American Idol
journey," McDonald told PEOPLE. "That led me to my future wife, so that's cool."
As Reed recently gushed to PEOPLE: "He goes beyond American Idol
because he's so talented."
Reps for the prospective bride and groom could not immediately be reached for comment.
E! also quoted a source as saying of the groom, whose band is the Nashville-based The Grand Magnolias, "He's going to play with his band at the reception. He's got some surprises for Nikki."