As she did just prior to game six of the NBA Finals, Christina Aguilera will again perform the U.S. national anthem, this time for game seven between the Boston Celtics and the Los Angele's Lakers. The winner-takes-all game is tonight (June 17) at Staples Center in L.A.

The game will be televised on ABC in the U.S. and to a worldwide audience in 215 countries and territories beginning at 9:00 p.m. ET.

Aguilera released her fourth studio album "Bionic," on June 8.