The New York singer and actress of Ecuadorian descent, Christina Aguilera, is considered the worst singer of the U.S. National Anthem, according to a recent poll taken by the online station iHeartRadio.

Some 37 percent of the station's listeners considered her rendition of "The Star-Spangled Banner" at the 2011 Super Bowl, a sports event watched by an average of 111 million viewers in the United States, as the worst in history.

On that occasion, Aguilera mixed up a phrase of the National Anthem during a midfield performance at Cowboys Stadium in Arlington, Texas.

Her mistake led to a flood of rants on social networks that prompted the singer to issue a communique explaining that she was so emotional when she started to sing that she lost track of the lyrics.

Aguilera, who is currently scoring a great success with Pitbull singing "Feel This Moment," was overcome with nerves, even though she had previously sung "The Star-Spangled Banner" at a number of sports events.

In second place after the singer of "Genie in a Bottle," "Lady Marmalade" and "Keeps Gettin' Better" was Aerosmith singer Steven Tyler for his vocalization at the 2012 AFC Championship Game, with 24.7 percent of the vote.

In third place came singer Kat De Luna and her singing of the National Anthem at a 2008 NFL game with 13.1 percent, while Michael Bolton trailed in fourth place with 9.6 percent. EFE