Justin Timberlake felt justified during his set at the opening of the Fontainebleau in Las Vegas on Wednesday evening.
The 42-year-old *NSYNC member seemingly cautioned concertgoers before singing his 2002 hit “Cry Me a River.”
“No disrespect,” he yelled to the audience before performing the single.
The Timbaland-produced track was mentioned in Timberlake’s ex-girlfriend Britney Spears’ recent memoir, “The Woman in Me.”
“Cry Me a River” was off of the “Mirrors” singer’s solo album “Justified” and the lyrics crooned about his breakup with Spears.
“I felt there was no way at the time to tell my side of the story,” the “Toxic” songstress, 42, penned in her bombshell autobiography.
She went on: “I couldn’t explain, because I knew no one would take my side once Justin had convinced the world of his version. I don’t think Justin realized the power he had in shaming me. I don’t think he understands to this day.”
The music video for the hit also shocked fans, with a woman with blonde hair that apparently resembled Spears appearing.
The couple dated from 1998 until 2002, with Spears revealing in her book that she cheated on “The Social network” star with choreographer Wade Robson.
“We were out one night and we went to a Spanish bar. We danced and danced. I made out with him that night,” she scribed.
However, she noted that Timberlake agreed to forgive her over the infidelity because she spent years “loyal to Justin.”
She also revealed how she had an abortion in 2000 because Timberlake allegedly did not want to be a father.
He also reportedly cheated on the “Crossroads” star with “another celebrity” during their relationship.
“I loved Justin so much. I always expected us to have a family together one day. This would just be much earlier than I’d anticipated,” she wrote. “But Justin definitely wasn’t happy about the pregnancy. He said we weren’t ready to have a baby in our lives, that we were way too young.”
She continued: “I’m sure people will hate me for this, but I agreed not to have the baby. I don’t know if that was the right decision.”
“If it had been left up to me alone, I never would have done it. And yet Justin was so sure that he didn’t want to be a father,” Spears explained.
Until Wednesday night, Timberlake did not react publicly to Spears’ remarks. In addition to “Cry My a River,” he also sang “SexyBack,” “Like I Love You,” “Suit and Tie” and “Mirrors” while in Vegas.
His wife, actress Jessica Biel, joined him at the opening alongside other A-Listers such as Tom Brady, Cher and Kendall Jenner.