The 'This Is Me' singer joined the pop superstar on the European leg of her 2011 'Femme Fatale Tour' and was informed by her entourage that he needed to stay away from Britney when backstage.
In an interview with Andy Cohen on US TV show 'Watch What Happens: Live', he spilled: ''It's funny because ... technically you're not supposed to get too close to Britney. Even though you are on tour with her they still ask you to keep a comfortable distance.''
Joe did break the rule at their final concert together and reached in for a hug with the '...Baby One More Time' hitmaker.
But rather than recoil, he insists she loved his act of kindness.
The 26-year-old DNCE star said: ''On the last day ... I just went in there and gave her the biggest hug. She was very loving and had fun with it.''
Cohen then asked: ''So the rule is you can't get close to Britney?''
To which Joe replied: ''You can't get too close.''
From their newest EP 'What Did You Think When You Made Me This Way', Nothing But Thieves drop the lyric video for their single 'Take This Lonely...
The Lumineers honour their friend and hero Tom Petty with a sensational cover of his 1996 song 'Walls' from the 'She's the One' soundtrack.
Watch Olly Murs get his nerd on as he blags his way into an exclusive Snoop Dogg party (where Rowan Atkinson is the bartender) in the video for their...
From 'Happy' to 'Banana Pancakes', these are soaked in positivity.
Mariah Carey is the picture of glamour in the black and white video for her brand new single 'With You'. It's the lead single from her forthcoming...
Eminem draws attention to the negative response his 2017 album 'Revival' received in the video for his latest song 'Venom'; a song recorded for the...
With the recent release of her third, very well received album 'Hunter' just behind her, Anna had plenty of relatively new songs to showcase.