Usher launched his debut Las Vegas residency on Friday (July 18), playing a string of his hits to a reported crowd of more than 4,000.The pop star, whose last album was 2016’s ‘Hard II Love’, made his return to live performing via a new residency at Caesar’s Palace, which runs until August 14.As TMZ reports, up to 4,300 spectators watched as the singer played a number of his songs including ‘Nice & Slow’, ‘Yeah!’, ‘My Bo’, ‘DJ Got Us Fallin’ in Love’, ‘OMG’, ‘Caught Up’ and ‘Confessions Part