Her stint as a judge on this show has shown us three things. First, she has an ego much bigger than her voice (or her talent). Second, she's not particularly smart.
And, third, she is not a particularly nice person.
Her behavior on Monday's episode was far from gracious. She went after her former "Mickey Mouse Club" co-star Tony Lucca for choosing to sing Jay-Z's "99 Problems." Lucca didn't sing the rhymes-with-witch word, but Aguilera insisted the "lyrical connotation was a little derogatory toward women."
And that's so brave of her to attack a contestant. When she makes the same point to Jay-Z, get back to us.
She essentially argued that Lucca was anti-woman. And she did so with Lucca's wife and young son in the audience.
Classy move, Christina.
Then she got in an argument with Adam Levine, who (not too brightly) argued the rhymes-with-witch word was not a reference to women.
Of course he would defend Lucca, who is on his "team." Plus, Aguilera's attack was rather ridiculous.
And she made it worse after her guy, Chris Mann, performed, declaring, "This is a real man who respects women."
That was childish and obnoxious. As Aguilera has so often been on "The Voice."
And if she has such a strong objection to the rhymes-with-witch word itself, why has she used it in so many of her own songs?
At any rate, at the end of tonight's two-hour episode we'll find out whether the winner is Lucca, Mann, Juliet Simms or Jermaine Paul.
Elsewhere on TV ...
NCIS (7 p.m., CBS/Ch. 2): A terrorist is targeting the Navy.
Last Man Standing (7 p.m., ABC/Ch. 4): Mike expects Vanessa's sister to hit him up for a loan. (Season finale)
Glee (7 p.m., Fox/Ch. 13): As the prom approaches, there's a battle to be king and queen and a rival activity is organized.
90210 (7 p.m., CW/Ch. 30): Navid and Liam fight over Silver.
Cougar Town (7:30 p.m., ABC/Ch. 4): When a storm blows in, Jules has a hurricane party.
NCIS: Los Angeles (8 p.m., CBS/Ch. 2): Kensi and Deeks go under cover to infiltrate a Russian sleeper cell.
Dancing with the Stars (8 p.m., ABC/Ch. 4): Another pair is eliminated.
New Girl (8 p.m., Fox/Ch. 13): One of the roommates decides to move out. (Season finale)
The L.A. Complex (8 p.m., CW/Ch. 30): Tariq suspects that Kaldrick has it in for him.
Unforgettable (9 p.m., CBS/Ch. 2): Carrie follows the trail of her sister's killer to Syracuse. (Season finale)
Private of Practice (9:01 p.m., ABC/Ch. 4): Addison and Sam have difficulty defining their relationship.
Deadliest Catch (10 and 11 p.m., Discovery): A brutal season is taking its toll on men and equipment.