BIGMOUTH BLAKE STICKS IN KELLY'S CRAW!

Fed up with Shelton's constant boasts about bailing on The Voice

COUNTRY Blake cowpoke Shelton's loud C boasts about quitting The Voice have left cohost Kelly Clarkson fit to be tied, tipsters tattle.

The 40-year-old Breakaway songbird is super ticked off with Blake for walking right when she's about to return to the hit talent competition after taking a year off to handle a nasty divorce and a new talk show, sources say.

"Kelly was initially devastated he's not going to be there, but now thinks it's pretty sneaky and tacky of him to gloat about all the free time he's going to have," dishes an insider.

"A lot of the other talent and bosses were also freaked and wondering how things would survive without Blake.