Mark Thompson via Getty Images
Formula 1 driver Jenson Button and his model girlfriend Jessica Michibata are engaged after dating for five years.
Michibata, sporting her engagement ring, in Bahrain on Friday
Michibata, 29, was pictured in the paddock during day three of F1 Winter Testing at the Bahrain International Circuit wearing a glistening band.
A spokesperson for Button, whose father died last month, formally confirmed the news and added the couple were "delighted".
Button and Michibata together in Hungary last year
Jessica Michibata
Formula One Motor Racing - Italian Grand Prix - Practice Day - Monza(01 of23)
Jessica Michibata, girlfriend of Jenson Button at the Monza Circuit, Italy. (credit:PA)
InStyle Best of British Talent Event - London(02 of23)
Jessica Michibata arriving at the InStyle Best of British Talent Event in association with Lancome and Charles Worthington, Shoreditch House, London. (credit:PA)
f1autoz12(03 of23)
Jessica Michibata, girlfriend of McLaren Formula One driver Jenson Button of Britain walks into the team's pit lane garage at the Malaysian Formula One Grand Prix at Sepang, Malaysia, Saturday, March 24, 2012. (AP Photo/Dita Alangkara) (credit:AP)
Jessica Michibata(04 of23)
Jessica Michibata, McLaren Mercedes driver Jenson Button's girlfriend, arrives for the first practice session for the Singapore Formula One Grand Prix on the Marina Bay City Circuit in Singapore, Friday, Sept. 20, 2013. (AP Photo/Vincent Thian) (credit:AP)
McLaren Mercedes' British driver Jenson(05 of23)
McLaren Mercedes' British driver Jenson Button's girlfriend Jessica Michibata walks in the paddock of the Bahrain international circuit on March 12, 2010 in Manama, before the first free practice session of the Bahrain Formula One Grand Prix. AFP PHOTO / FRED DUFOUR (Photo credit should read FRED DUFOUR/AFP/Getty Images) (credit:Getty Images)
Japanese model Jessica Michibata, the gi(06 of23)
Japanese model Jessica Michibata, the girlfriend of Formula One driver Jenson Button, poses with Tiffany yellow diamond jewellery at a reception at Tiffany's flagship store in Tokyo on April 7, 2010. AFP PHOTO / Yoshikazu TSUNO (Photo credit should read YOSHIKAZU TSUNO/AFP/Getty Images) (credit:Getty Images)
F1 Singapore Grand Prix - Practice(07 of23)
SINGAPORE - SEPTEMBER 24: Jessica Michibata, girlfriend of Jenson Button of Great Britain and McLaren Mercedes is seen following practice for the Singapore Formula One Grand Prix at the Marina Bay Street Circuit on September 24, 2010 in Singapore. (Photo by Mark Thompson/Getty Images) (credit:Getty Images)
Jenson Button Competes In City of Rockingham(08 of23)
PERTH, AUSTRALIA - DECEMBER 19: Jessica Michibata, girlfriend of McLaren Formula 1 driver Jenson Button warms up before the start of the City of Rockingham Triathlon on December 19, 2010 in Perth, Australia. (Photo by Paul Kane/Getty Images) (credit:Getty Images)
GE Blenheim Triathlon(09 of23)
WOODSTOCK, ENGLAND - JUNE 05: Jessica Michibata crosses the finish line during the GE Blenheim Triathlon at Blenheim Palace on June 5, 2011 in Woodstock, England. (Photo by Chris Brunskill/Getty Images) (credit:Getty Images)
Japanese model Jessica Michibata, known(10 of23)
Japanese model Jessica Michibata, known as the girlfriend of McLaren-Mercedes Formula One driver Jenson Button of Britain, shows off TAG Heuer's new list watch, 'Formula 1 Lady' during the company's event entitled 'Celebration of Motor Racing by TAG Heuer' in Tokyo on October 4, 2011. Michibata was chosen as the first Japanese model for the worldwide brand muse for TAG Heuer. AFP PHOTO / TOSHIFUMI KITAMURA (Photo credit should read TOSHIFUMI KITAMURA/AFP/Getty Images) (credit:Getty Images)
F1 Grand Prix of Singapore - Race(11 of23)
SINGAPORE - SEPTEMBER 25: Jenson Buttons girlfriend Jessica Michibata arrives in the paddock before the Singapore Formula One Grand Prix at the Marina Bay Street Circuit on September 25, 2011 in Singapore. (Photo by Vladimir Rys/Getty Images) (credit:Getty Images)
Australian F1 Grand Prix - Race(12 of23)
MELBOURNE, AUSTRALIA - MARCH 18: Jessica Michibata, girlfriend of Jenson Button of Great Britain and McLaren celebrates in parc ferme as he wins the Australian Formula One Grand Prix at the Albert Park circuit on March 18, 2012 in Melbourne, Australia. (Photo by Paul Gilham/Getty Images) (credit:Getty Images)
AUTO-PRIX-SIN-F1(13 of23)
Jessica Michibata (C), girlfriend of McLaren Mercedes driver Jenson Button of Britain, runs towards the podium after Button took second place in Formula One's Singapore Grand Prix on September 23, 2012. AFP PHOTO / PUNIT PARANJPE (Photo credit should read PUNIT PARANJPE/AFP/GettyImages) (credit:Getty Images)
Amber Lounge Fashion Monaco(14 of23)
MONACO - MAY 24: Jessica Michibata the girlfriend of Jenson Button of Great Britain and McLaren attends the Amber Lounge Charity Fashion event at Le Meridien Beach Plaza Hotel on May 24, 2013 in Monaco, Monaco. (Photo by Mark Thompson/Getty Images) (credit:Getty Images)
F1 Grand Prix of Hungary(15 of23)
BUDAPEST, HUNGARY - JULY 28: Jessica Michibata, girlfriend of Jenson Button of Great Britain and McLaren is seen prior to the Hungarian Formula One Grand Prix at Hungaroring on July 28, 2013 in Budapest, Hungary. (Photo by Vladimir Rys/Getty Images) (credit:Getty Images)
F1 Grand Prix of Singapore - Previews(16 of23)
SINGAPORE - SEPTEMBER 19: Jessica Michibata, girlfriend of Jenson Button of Great Britain and McLaren is seen in the paddock ahead of the Singapore Formula One Grand Prix at Marina Bay Street Circuit on September 19, 2013 in Singapore, Singapore. (Photo by Mark Thompson/Getty Images) (credit:Getty Images)
AUTO-PRIX-IND-F1(17 of23)
McLaren driver Jenson Button's girlfriend Jessica Michibata poses for media representatives wearing a saree, a India traditional garment, prior to the Formula One Indian Grand Prix 2013 at the Buddh International circuit in Greater Noida onthe outskirts of New Delhi on October 27, 2013. AFP PHOTO/Prakash SINGH (Photo credit should read PRAKASH SINGH/AFP/Getty Images) (credit:Getty Images)
(18 of23)
Jessica Michibata promotes the Samantha Thavasa brand in a slinky bikini. (credit:Splash News)
(19 of23)
Jessica Michibata promotes the Samantha Thavasa brand in a slinky bikini. (credit:Splash News)
(20 of23)
Jenson Button and Jessica Michibata seen on a boat while on holiday in the south of France (credit:Splash News)
F1 Testing in Bahrain - Day Three(21 of23)
BAHRAIN, BAHRAIN - FEBRUARY 21: Jessica Michibata, girlfriend of Jenson Button of Great Britain and McLaren sits in the paddock during day three of Formula One Winter Testing at the Bahrain International Circuit on February 21, 2014 in Bahrain, Bahrain. (Photo by Mark Thompson/Getty Images) (credit:Getty Images)
spl116034_007(22 of23)
spl116034_004(23 of23)