Singer Britney Spears, who recently split from her boyfriend David Lucado, addressed his infidelity for the first time during her show in Las Vegas. "So I know you know my boyfriend cheated on me," she told the crowd during her "Piece of me" show in Las Vegas, reports people.com. "But the best thing about being cheated on is I get to go on more first dates," she added. The 32-year-old has reportedly been in good spirits since becoming single. "There is no way she would ever take (Lucado) back. It's over for good," said a source. (Source: IANS)