"The fact that she's coming to give us a week of her time — she could be doing anything — is a testament to the show that we have built," Bush Hager exclusively tells PEOPLE

Taraji P. Henson, Eva Longoria and Keke Palmer will each co-host for a day before Johansson takes over for an entire week.

Today with Jenna & Friends' will begin on Jan. 13 and will feature a rotating roster of co-hosts until someone permanent is named, following Hoda Kotb's exit from the long running morning talk show.

With Hoda Kotb preparing to exit Today in just a few days, Jenna Bush Hager is revealing the identity of her very first guest co-host on Today with Jenna & Friends. As Bush Hager told People, Scarlett Johansson will be joining her on the morning broadcast beginning Tuesday, Jan. 21, and she couldn't be more thrilled about working with the actress.

Scarlett Johansson has joined “Today With Jenna & Friends” on NBC as a guest co-host. Jenna Bush Hager shared the news with People magazine, telling the publication that Johansson will begin her new week-long gig on Tuesday,

Jenna Bush Hagerannounced on Tuesday’s episode of Today WithJenna & Friends that Scarlett Johansson will be her co-host for a week,

But it’s going to be really weird seeing Scarlett Johansson. The Black Widow star is swooping in to Today’s rescue, set to co-host with Bush Hager for a full week beginning January 21. Bush Hager shared on the January 7 Today that she has “so many fun things planned” with Johansson.