Viral Video Singing Telegrams With Demi Lovato: Wilmer Valderrama’s GF Will Barge Into Your Dentist Appointment To Shave Your Head! [WATCH]

James Corden has been growing in popularity over the past few months, after being selected as the replacement for Craig Ferguson on "The Late Late Show," and some of his segments, like Car Karaoke, have a tendency to go viral - but the new "Singing Telegrams" with Demi Lovato clip is a whole other league!

In the "Singing Telegrams" with Demi Lovato clip, the singer and actress barges into people's dentist and hairdressers appointments with Corden to perform some seriously funny - and sometimes very, very inappropriate - telegrams.

Even funnier, the "Singing Telegrams" with Demi Lovato video even sees the Disney Channel alum shaving someone's head - watch below!

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