Just weeks after his romance with Pussycat Doll Nicole Scherzinger, ended the couple appear to have had a change of heart.
Lewis, 25, and Nicole, 31, split in January after 20 months together to concentrate on their careers.
But yesterday the glamorous couple were spotted openly kissing in Hollywood.
And it seems Nicole couldn't contain her joy as she dropped a broad hint that wedding bells may be on the cards.
'They took a tough decision and both regretted calling it off almost immediately,' a source told The Sun.
When asked if she was looking for anything in particular while browsing clothes in a Los Angeles boutique, brunette beauty Nicole replied: 'This year - my wedding dress.'
Miss Scherzinger was by Hamilton's side as he was crowned world champion in Brazil in November 2008.
But last year saw them spending increasing amounts of time apart due to their busy careers.
Race ace Hamilton is now based in Switzerland while Miss Scherzinger lives in Los Angeles.
Hamilton, 25, was left distraught by the split and had not even acknowledged it with an announcement.
But, after she confirmed the news, Hamilton told the Daily Mail: 'I just want to move forward in a positive manner.
'It never was a distraction but I am not going to take my mind off what I've got to do by thinking about it.'
In an interview with the Mail's You magazine last July, Scherzinger admitted it was challenging to balance their busy careers with romance.
She said: 'We are both driven people who are serious about our work, so we are very supportive of the time we do have together.
'Finding time for each other can get complicated, but we find a way to work it out.'
Source: Daily Mail
