The teenager who claims to have been relegated to the back row at a filming of American Idol last week because she was “too big, too heavy” wants a public apology from people at the hit reality show, her father tells RadarOnline.com exclusively.

“I would like to see American Idol give her an open apology,” said Randy Kauffman. “She wants an apology and it should be a live apology, if that’s what it takes.”

EXCLUSIVE: Too Fat For Idol?!? Audience Member Banished To Back Seat For Being 'Too Heavy'

19-year-old Ashley Kauffman of Riverside, Calif., claimed in an exclusive interview with RadarOnline.com last week that she and five of her girlfriends got free tickets to attend the filming, but while three of her friends nabbed front row seats, she was allegedly told, “Oh no, you're just too big, too heavy to be in front!” and then by a second staffer “this makes sense why you're not with the skinny girls. You're in the last row.”