Chris Brown and Tran Karrueche have sparked rumours they're dating again.

The 25-year-old singer and the beautiful model, 26, have fuelled speculation they've rekindled their on/off relationship once more after they were spotted walking a white shepherd puppy together in Beverly Hills, California, on Friday (26.12.14).

However, seeing the pair together the day after Christmas (25.12.14) has come as a surprise to fans as the stylist recently vowed she'd never reunite with the 'Fine China' hitmaker, who was placed on probation after beating ex-girlfriend Rihanna in 2009, again following their split earlier this month.

Chris confirmed he was single while performing in Los Angeles three weeks ago, saying ''I'm single too! F**k that b***h.''

However, the troubled star later apologised to his ex-girlfriend on Twitter for ''airing out'' their personal life in public.

He wrote: ''Being young and dumb is one of my strong suits and emotional at best. I love hard and react impulsively when I'm hurt at times. I don't think social media is a place to air out or hash out personal problems and a n***a feel hella WACK for doing it.

''So I AM APOLOGIZING I live in a glass house and the same s**t that makes me great also is my curse. Everybody know I love that girl. I don't care how my image my look to the public because I'm still gonna be the best at what I do. I just want baby girl to know I apologize! (sic)''.

The pair first started dating in 2011 but have broken up on a number of occasions.