The buzz about their alleged engagement was sparked by an art gallery in the nearby town of Jackson, called the Tayloe Piggott Jewellery and Art Gallery.
The company wrote on their Facebook page, “Word on the street is that Justin Timberlake proposed to Jessica Biel at the Amangani last night… we’re picking out post-engagement presents for them just in case they come in! Trying to play it cool.”
New York publicist Kyle Schaffler also tweeted the news at various media outlets, “Hehe, I love that NO media outlets know about the Justin Timberlake and Jessica Biel engagement. Benefits of working in PR.”
The pair are currently staying at five star skiing resort in Jackson called the Amangani while on vacation.
Justin and Jessica split last March after four years together before rekindling their romance at the end of summer.
For now, there are no details and reps for the two stars offered no comment on the news.