American Idol lawyers have formally banned David Archuleta's famously overzealous stage dad

American Idol lawyers have formally banned David Archuleta's famously overzealous stage dad from rooms where his son is "learning or rehearsing songs," sources tell TMZ.

The final straw came when Jeff Archuleta, who all along reportedly has been badgering producers, the band, vocal coaches and even other singers, sought to rewrite the lyrics to "Stand By Me," which David served up this week. Though advised by Idol that incorporating bits of Sean Kingston's "Beautiful Girls" was a massive no-no, Jeff nonetheless sent his son onto the live show to sing the unapproved version, creating problems with the song's publisher and costing Idol big bucks.

Jeff — who incurred a similar banishment when young David competed on Star Search — will be allowed to sit in the audience during Idol's remaining live shows, but is forbidden from venturing backstage.

Name*:

Email:

Location*:

* - value is required