Gwen Stefani And Blake Shelton Pack On PDA During Charity Event As Wedding Rumors Swirl

Gwen Stefani and Blake Shelton didn't do much to silence the ongoing rumors regarding their potentially upcoming wedding over the weekend. As rumors continue to swirl in regard to Gwen Stefani and Blake Shelton's alleged plans to get married, the couple was spotted packing on major PDA during a charity event in The Hamptons.

On Saturday night, Gwen Stefani and Blake Shelton treated guests at the Apollo in The Hamptons event to an unexpected performance of their duet, "Go Ahead and Break My Heart." In the midst of Stefani's performance, Shelton hopped on stage and joined her and later on, he was spotted supporting her in the audience.

According to a People Magazine report on August 21, Shelton was even seen air guitar-ing during Stefani's performance and after he gave her a standing ovation, Stefani joked, "The tall guy stood up first – good job, Blake."

Gwen Stefani and Blake Shelton have been surprising fans with performances of their duet throughout Stefani's "This is What the Truth Feels Like Tour," which kicked off in July. Despite Shelton's busy schedule with The Voice, which recently began filming its 11th season, he has made it a point to attend several of Stefani's shows and even when he doesn't take the stage, he can often be seen backstage.

Gwen Stefani and Blake Shelton have been dating for nearly one year and as their relationship continues to get more serious, they have faced nonstop rumors regarding their future plans for a wedding. In fact, while the couple is not yet confirmed to be engaged, they have allegedly begun the process of planning their upcoming ceremony.

"Rumors are circulating in their circle that they've begun preparations for a wedding," an insider told People Magazine earlier this month. "There's no date set, but they're planning ahead and having fun talking about it."

"Everyone is expecting it to happen at some point, but Gwen is touring and busy. The time just hasn't been right," a source previously added.

Between Gwen Stefani's tour duties and Blake Shelton's production requirements for The Voice, the couple has certainly faced challenges when it comes to spending time together but despite that, they are said to be "very serious" about each other.

"Blake and Gwen are madly in love, committed and planning for a future together," said the source.

Last week, a report by Life & Style magazine claimed Gwen Stefani and Blake Shelton were planning a winter wedding in which Stefani's three sons, Kingston, 10, Zuma, 7, and Apollo, 2, would have major roles.

"Apollo wants to be the ring bearer, and the two older boys will be junior groomsmen with Blake," the insider told the magazine. "Blake wants it to be really special, to show them coming together as a family."

"They're planning a December wedding at Blake's ranch in Oklahoma," the insider added, "because Gwen and the boys love it there and it will give them a lot of privacy."

Gwen Stefani and Blake Shelton have spent tons of time together at his Oklahoma home and most recently visited the ranch last week. As Us Weekly revealed at the time, Stefani and her sons, along with a few members of her tour, were spotted at Shelton's ranch last Monday during a short break from her ongoing show schedule.

Gwen Stefani and Blake Shelton have yet to comment on reports of their wedding plans.

[Photo by Kevin Winter/Getty Images]