Justin Timberlake calls Las Vegas residency a 'retirement plan' as his ex Britney Spears signs a …

Justin's former girlfriend Britney Spears held a record-breaking residency at the Planet Hollywood resort in Las Vegas. The Piece of Me show ran for four years and came to a close on New Year's Eve but the Pop Princess has reportedly already signed up for a second run due to start in 2019. According …