Yorkshire-born Smith made a name for himself with Leeds United in the Premier League as an 18-year-old, with a goal scoring debut against Liverpool in 1998. Smith's six-year spell at his beloved Leeds saw him score 56 goals in 228 appearances where he was part of the Leeds side that reached the Champions League Semi-Finals in 2001.
After battling against a number of other club's for Smith's signature, Karl Robinson will be delighted at sealing the permanent signing of his number one summer target.
. mk The former Manchester United and England star was a huge hit with the fans during his loan period with the Club last season and always expressed his desire to stay at stadium
Unable to achieve the dream of promotion last year, Smith is set to return to achieve the ambition of promotion to the Championship in the 2012/13 season.
Back in January Smith stunned the world of football when he made the loan switch from Premier League side Newcastle United to join the Dons. At the time Smith cited his admiration for the Dons' style of football and his desire to get the Club promoted as the reason behind the switch.
Smith reported for training this morning and is set to sign a contract to complete the move later today.
After regaining full fitness Smith made the switch to Newcastle in August 2007, signing for an undisclosed fee, and he went on to be a key member of the Magpies' Championship winning side in 2009/10.
During his three years at Old Trafford Smith won the Premier League title and the Carling Cup, but his time with the Red Devils was marred by a horrific broken leg and dislocated ankle sustained in the FA Cup against Liverpool in 2006.
In 2004, following Leeds' relegation from the Premier League, Smith made a controversial switch to Manchester United for a £7million transfer fee.