Watch Nikki Blonsky in Ugly Betty show

Hairspray star Nikki Blonsky will make her guest appearance on Ugly Betty tomorrow January 8 .

She was 19-year-old actor plays Teri, an assistant at Elle magazine that Betty initially develop friendship first, but later becomes a rivalry. The two met at a networking mixer, where Teri doing something makes Betty night super-duper complex.

Hairspray star Nikki Blonsky, who turns 20 this weekend, is set to film a guest role in an episode of ABC's Ugly Betty airing later this season.Nikki will play a Plain Jane Elle Magazine assistant with a hidden agenda that will be friends with Betty. Blonsky make headlines a few months back, when she and her family are involved in an airport brawl that landed them in prison.

Broadway actress Nikki Blonsky makes news again with the announcement that Hairspray star has joined the cast of Ugly Betty for at least one guest appearance. She will play Teri, an assistant at Elle who is known by Betty Suarez. We are told she comes with her own agenda, so be forewarned - do not turn in the back of her Betty.

Blonsky has signed for one episode, but producers insist there can be multiple. Blonsky connected Lindsay Lohan, Victoria Beckham, Naomi Campbell and Lucy Liu, who have all guested of the hit series.

Nikki Blonsky to gets on Ugly videos(you tube)