The five-time Grammy award winning singer-songwriter arrived in Brazil's business capital Sao Paulo during

the weekend to shoot a commercial for clothing retailer C&A.

A hoard of shouting fans followed Aguilera to the fashion week venue where she spoke to reporters about her deal with the brand.

She told reporters she hoped the campaign would help her be regarded as a fashion icon.

"You know, at this point I think that I've proven a body of work that has been very fashion-forward. Years ago I was the face of the Versace campaign, where I got to work with Donatella. I've been a huge lover of fashion, (John) Galliano being one of my favorites. So I think that at the end of the day, I would love at the end of my body of work to be known as a fashion icon, because I think those are the true risk-takers and people who don't play by a rule book where fashion is concerned," she said.

Aguilera, who began professional singing as a teenager, made her movie debut in December as the star of the musical "Burlesque".

She said she hoped to do more acting in the near future.

"I would like to do more film. This movie was a tremendous amount of challenge and hard work for me to take on, considering I wrote the music and I starred in the film -- my first time acting and getting into my character. I had to take on dancing in a way I had never danced before, the hours were very long… But I'm so proud of the movie and my co-stars… I couldn't have asked for better people around me," she said.

The 30-year-old found pop success in the late 1990s and 2000s with hits like "Genie in a Bottle" and "What a Girl Wants," but in recent years she has faced stiff competition from a new round of singers including Lady Gaga and Katy Perry.

C&A, Brazil's leading clothing retailer, also shot commercials with U.S. singer Beyonce in 2010.

Daniela Oliveira, an Aguilera fan who travelled five hours to take glimpse of her idol, said she hoped for a concert soon.

"I really wanted her to come back for a concert, instead of only promoting clothes. But it was great that she came and I hope she enjoyed it and that she comes back again," she said.

During the weekend, U.S. actor Ashton Kutcher and his wife Demi Moore also showed up at the Brazilian fashion event. Heiress Paris Hilton also took a turn on the catwalk for Brazilian brand Triton.

On Tuesday, the parade by designer Fause Haten was the afternoon's highlight. The models paraded with blonde wigs and sat on chairs while a couple of ballet dancers spun around a piano.

Haten took a touch of haute couture to the catwalk with mostly dark outfits that mixed light fabrics and leather.

Fashion week closes on Wednesday after Brazil's top designers finish presenting their upcoming Fall-Winter collections