Take note ladies, all it takes to get Usher to start stripping down is a cover of the Backstreet Boys and a broken air conditioning unit. At least that how it looks as the singer was forced to strip down during last nights (May 13) edition of The Voice, in what was probably the highlight of a still impressive show.

The singer was so taken by Garrett Gardner's rendition of 'I Want It That Way' by the Backstreet Boys that he had to take off a few layers until he was just in a vest and his trousers. Well, that and because the A/C unit was broken in the studio, but the acts on last night's show were hot that we wouldn't be surprised if it was a joint effort between the remaining acts and the A/C.

Although it was Shakira's Gardner that had Usher taking his top off, it was actually the 'Climax' singer's team that looked to have finished the night more impressively. Whilst Josiah Hawley crooned a Script cover and Michelle Chamuel won praise for her rendition of 'Call Your Girlfriend,' it was Vedo's song and dance routine to  Michael Jackson‘s 'Rock With You' that really impressed.

Usher
Usher was blown away by last nights performances

As well as Gardner's performance, team Shakira saw Sasha Allen wow with her pop cover of Heart‘s 'Alone,' with Kris Thomas taking on The Jackson 5‘s 'I’ll Be There.' In camp Blake Shelton, Holly Tucker seemed to struggle a litte but still received nothing but praise from the judges, whilst The Swon Brothers also delivered. However it was 16-year-old Danielle Bradbury that really impressed, with Adam Levine telling her, “you’re the one to beat.”

Speaking of LeVine, his team had a pretty impressive run in too, with Sarah Simmons giving a spine-tingling performance of 'The Story' by Brandi Carlile, whilst final performer Amber Carrington chose 'I’m Gonna Love You Through It' by Martina McBride. LeVine's other performer Judith Hill was perhaps the pick of the bunch however, and cause Adam to say that she is “perhaps the most talented human being in this competition.”

The Voice
This seasons judges have been a hit