Lafferty scored seven goals in his final six games of the 2010-11 season to help Rangers to their last top-flight title triumph
Kyle Lafferty has returned to Rangers for a second spell after Hearts accepted an improved offer for the Northern Ireland striker.
The 30-year-old, who spent four years at Ibrox from 2008 to 2012, has signed a two-year deal at Ibrox.
Lafferty scored 20 goals for Hearts after joining them last summer, his last a match-winner against Celtic.
His arrival will help Rangers offset the loss of Jamie Murphy, out for the rest of the season with a knee injury.
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Rangers had an initial bid of £200,000 for Lafferty rejected in late July, but the player admitted the lure of a return to Ibrox was strong as they continued to discuss a deal.
"I think everyone knows I'm a Rangers supporter," he told BBC Scotland after his recent goal in a 1-0 victory over Celtic, while acknowledging the support he has received at Hearts, who helped the player deal with a gambling addiction.
"What Hearts have done for me has been superb," Lafferty added. "Hopefully I've repaid them with the goals."
He scored 20 in his 48 appearances for the Edinburgh club, who he joined from Norwich after earlier spells with Sion in Switzerland and Palermo in Italy after leaving Rangers.
Lafferty, who began his career with Burnley and has won 67 caps for Northern Ireland, handed his shirt to a young fan at the end of last Saturday's League Cup win at Dunfermline, after coming on as a substitute in what proved his final Hearts outing.
He becomes Steven Gerrard's 12th signing since taking over at Ibrox this summer.
Having recruited support for top scorer Alfredo Morelos, Gerrard is also keen to sign another centre-back before the transfer window closes to provide cover for Connor Goldson and Nikola Katic.
Source: bbc.com