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"It's an honor to get that call," Toby says about being asked to host the show (quote via People). "Country music makes me happy," adds Kristen, who is looking forward to meeting not only her co-host, but her "country crush," Miranda Lambert.
In addition to emceeing, Toby's "Red Solo Cup" is nominated in two categories: Video of the Year and Male Video.
Also taking the stage for the CMT Music Awards will be performers Carrie Underwood, Lady Antebellum, Brad Paisley, Kenny Chesney, Zac Brown Band and Little Big Town.
All categories are fan-voted. You can cast your votes at CMT.com until June 4. The final five nominees for the Video of the Year category will be announced at the beginning of the live telecast. Get a full list of nominees here.
The 2012 CMT Music Awards air live on June 6 from Nashville's Bridgestone Arena beginning at 8:00 PM ET on CMT and CMT.com.