Nottingham Forest's Kuwaiti owners have announced the appointment of their third manager since they took over the English Championship club last July.
Chairman Fawaz Al Hasawi on Thursday revealed that former manager Billy Davies was returning to the club.
The 48-year-old Scot will begin work on Monday and will be in charge for home game against Bolton next week.
Davies is the fourth man in the hot seat since Kuwaiti owners took over. Steve Cotterill, Sean O'Driscoll and, most recently, Alex McLeish have all been sacked.
Al Hasawi said: “I’m delighted to welcome Billy back to our club and really look forward to working closely with him.
“Billy has unfinished business with The Reds and we know how hungry he is for success. In returning to The City Ground we believe his leadership will help us fulfil our ambition of making it to the Premier League."
He added: "We know the fans, players and staff will join us in welcoming Billy back to the Forest family. As I have said we will return Nottingham Forest to its former glory.”
Davies won the 2007 Playoffs, finished as runners-up in 2005 with Preston North End, and reached the semi-finals in 2006 (Preston), 2010 and 2011 (both with Nottingham Forest).
He also holds the record for the most Football League Championship Manager of the Month awards having won two each at Preston, Derby and Nottingham Forest.
Davies said: “It is a privilege and an honour to be back in charge of the Reds. As my new friend Fawaz says I have unfinished business here at Forest and am relishing this great opportunity to return Forest to its former glory."
Kuwait’s Al-Hasawi family completed the takeover of the two-time European Cup winners last summer.
Fawaz, Abdulaziz and Omar Al-Hasawi agreed to acquire the controlling stake from Nigel Doughty, who died in February four months after putting the club up for sale.
The family made its fortune in the refrigeration and air-conditioning business.