+ November 20 | iHeart Radio Theater performance, NYC
Win tickets for this concert here

+ November 24 | Bloomingdales, NYC

Bloomingdale’s will unwrap their highly anticipated holiday windows with Tony Award winning singer and actress, Idina Menzel. Menzel will be performing selections from her new album “Holiday Wishes”, and other favorites. She will be introduced with a special opening performance by iLuminate, the hit off-Broadway show everyone’s raving about that combines music, technology, and electrifying entertainers performing in light suits.

It all takes place on Monday, November 24, beginning with the unveiling at 6:15 p.m. and followed by the performances at Beacon Court.

This year’s windows invite onlookers to get in on the holiday fun with an entirely interactive experience. The high-tech windows include such features as games inspired by the Bloomingdale’s holiday GIFT A BOW mascot powered by The Science Project (you could receive a sweet surprise!), the opportunity to interact with the retailer’s social media channels, and more.

The Bloomingdale’s 59th Street flagship will be kicking off the party early at 3pm with the opportunity for shoppers to meet Menzel and pick up a copy of her new album to be signed by the artist herself.

Source

+ December 1 | Today Show, NYC

+ December 3 | Tree Lighting, NYC
More info at Idina’s official site

I get to sing at the #RockCenterXMAS tree lighting Dec 3 @ 8pm on @NBC! So excited to be a part of this amazing holiday tradition.

— Idina Menzel (@idinamenzel) November 12, 2014

+ December 12 | Live with Kelly and Michael
+ December 15 | The Tonight Show with Jimmy Fallon

Whenever more info becomes available it’ll be posted on the site. Check the sidebar on the right for more.
Credit to Megan on tumblr for finding this.