Christina Aguilera is once again using her formidable pipes to grace the NBA finals: The singer will belt out a rendition of "The Star Spangled Banner" at tonight's seventh and final game of the series.

The singer, whose latest album, Bionic, recently debuted at #3 on the Billboard albums chart, sang at Game 6 at Los Angeles' Staples Center on Tuesday before the Lakers defeated the Boston Celtics and tied the series. The Lakers — who have lost their last four game-seven matchups to the Celtics — are apparently hoping Aguilera will bring them similar good luck tonight.

The singer may be hoping that the Lakers are a good-luck charm for her as well, as she's had some rough luck over the past few weeks. Bionic's first-week sales were softer than expected, she recently postponed her tour until next year, and the response to her sexed-up video for the album's first single, "Not Myself Tonight," has been mixed.

"I don't know if it's because she went away for a while, or because she tried to do something different with this project, but it feels a little crass and calculated," Entertainment Weekly's Leah Greenblatt told MTV News. "From her choice of collaborators [The-Dream, Polow Da Don, Le Tigre] to her first single, it doesn't feel fully organic. What's missing so much with her this time out is that, while she can still sing the crap out of her songs, you don't get a sense of vulnerability, or even really know who she is."