SO, there's this video on youtube called Powerthirst that makes fun of energy drinks, and at the end of the sequel it mentions Anna Kournikova. I didn't know who this was so I looked her up. It turns out she is or was a famous female Russian tennis player/model. Here's the Wiki article for a general overview and then a longer, more accurate bio from a sports website.

Anna Sergeyevna Kournikova (Russian: Анна Сергеевна Курникова; born 7 June 1981) is a retired Russian professional tennis player and model. Her celebrity status made her one of the best known tennis players worldwide. At the peak of her fame, fans looking for images of Kournikova made her name one of the most common search strings on the Internet search engine Google.

Although also successful in singles, reaching World No. 8 in the world in 2000, Kournikova's specialty has been doubles, where she has at times been the World No. 1 player. With Martina Hingis as her partner, she won Grand Slam titles in Australia in 1999 and 2002. Kournikova's professional tennis career has been curtailed for the past several years, and possibly ended, by serious back and spinal problems. She currently resides in Miami Beach, Florida, and plays in occasional exhibitions and in doubles for the St. Louis Aces of World Team Tennis.

Anna's Bio

And for those interested:

Powerthirst - Redomination