The 33-year-old moved to White Hart Lane in 2006, enjoying two brilliant seasons before moving onto Manchester United in a £30.75million deal.
Berbatov subsequently joined Fulham and is currently on loan at French side Monaco until the end of the season, when his deal at Craven Cottage expires.
Spurs reportedly came close to re-signing him in January and could be tempted again this summer, which starts with the Bulgarian lining-up at White Hart Lane for King's testimonial on May 12.
"I am really forward to returning to White Hart Lane to play in Ledley's testimonial," Berbatov said
"It is a fitting tribute for a great player and I can't wait to meet up with some of the past and present players
It should be a great night not just for Ledley but for the fans too."
Source : PA
Source: PA