updated 08/19/2009 AT 4:50 PM ET
•originally published 08/19/2009 AT 4:40 PM ET
Speaking publicly for the first time since appearing at the Country Music Awards last November, country star Shania Twain tells fans she has a surprise for them on Aug. 28 – which, not coincidentally, is her 44th birthday.
“Hi everyone, Shania here,” says Twain, sitting in her yard at her home in Switzerland with two of her dogs.
“First to start off, I want to thank you for all the beautiful birthday wishes for Eja’s birthday,” she says, referring to her son, who just turned 8.
She then adds: “Secondly, if you haven’t already seen on my Web site, for August 28th on my birthday, I will be giving you a small gift of thanks for all of your support over the last year … You’ve been really wonderful, thank you so much.”
And motioning to one of her pups, she signs off, “And Dolly thanks you, too. We’ll see you soon!”
So what’s the surprise? Another video – but not a musical one.
According to a source, fans will be able to see a video travelogue of what Shania has been up to since splitting from her husband producer Robert “Mutt” Lange in May 2008 following his affair with her best friend, Marie-Anne Thiébaud, a longtime secretary and manager of the couple’s chateau in Switzerland.
“It’s not new music, but it’s a piece that Shania put together of what she’s been doing for the last year,” says a source. “It’s definitely a totally new side of Shania that no one’s ever seen.”
The source adds that Twain is also posting a personal letter, much like the one she posted for fans on her site in June, but with more details.
The singer will also be a guest judge for American Idol during their Chicago auditions on Aug. 30 and 31. Her last public outings included a Manhattan shopping spree and a fun-filled Florida vacation in December with Thiébaud’s ex-husband, Frédéric Thiébaud.
Check back on PEOPLE.com for the scoop on Shania’s video birthday treat on Aug. 28!