Avril Lavigne kicked off her wedding celebrations by hosting a party in Cannes, France.

The 'Here's To Never Growing Up' singer threw a pre-wedding bash with her fiance Chad Kroeger on Saturday (29.06.13) but the couple are ''technically not married yet'' and will officially tie the knot on Monday (01.07.13).

A source told UsMagazine.com that the couple planned an ''intimate'' three-day celebration with the help of celebrity wedding planner Mindy Weiss, who has posted several photos on Instagram from the region, including a romantic sunset.

The insider added: ''It is extremely intimate, just close friends and family.''

The Canadian singer sparked rumours she and the Nickleback frontman exchanged vows on Saturday after Mike Heller, CEO of Talent Resources, who works with Avril, tweeted that he was at her wedding.

He wrote: ''I'm in south of France about to see my little Rok star #avril get married I am so happy to be part of this special celebration. (Sic)''

He later added: ''No pictures will be sent since this is #avril wedding but I will tell you everyone is so excited.''

A second source explained that Mike was referring to the three-day long bash rather than suggesting Avril was already married.

The 28-year-old singer previously revealed she was planning a lavish wedding, saying: ''I just want to make sure I really enjoy this amazing time and I want all the guests who come to have this once in a lifetime experience. I want everyone to say, 'Wow!' and for it to be special for everyone, not just us.''

The 'Girlfriend' singer, who was previously married to Sum 41 star Deryck Whibley, fell for Chad, 38, last summer when he was helping her record her fifth studio album.

She recently said: ''I feel most beautiful when I'm around Chad.''