The Bachelor's Jason Mesnick and Molly Malaney may be frantically planning their soon-to-be-televised wedding, but Bachelor host Chris Harrison is more nervous about what gift to give them!

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"Yes I'll be hosting Jason & Molly's wedding," he posted on Twitter Thursday. "Now I have to buy them a toaster!"

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Mesnick, 33, will wed Malaney, 24 whom he met on the 13th season of the show, on ABC Monday, March 8 in a two-hour special. The episode will also feature Malaney going to dress fittings and planning the event. Former Bachelor and Bachelorette contestants will be on the guest list.

Back in October, when the couple announced their engagement, Malaney told UsMagazine.com that she didn't know if they'd televise the nuptials.

"I don’t want to say no because you never know, but at this point, we don’t even know what we’re going to do about the wedding yet," she said at the time.

Mesnick had added, "We still need to talk."

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One person who likely won't be there: Melissa Rycroft, whom Mesnick dumped on live TV last March -- a few months after proposing to her. Malaney was the runner-up.

Still, Mesnick and Malaney will likely have plenty of fans watching, as the last televised Bachelor wedding -- for Trista Rehn and Ryan Sutter -- drew 17 million viewers.

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