Nikki Sixx is furious with Kim Kardashian for promoting her beauty products the same time news broke of the tornado in Oklahoma that killed 51 innocent people, including 20 children.

Radar Online reported that Nikki became pissed at the pregnant reality star after he posted an ad for Red Cross relief on his Instagram account, when shortly after Kim sent out a tweet promoting one of her bronzers.

"PLEASE Text "REDCROSS" to 90999 for $10 donation to help tornado victims in #OKC Sending out our prayers," he posted. 

According to a screen shot he posted, Kardashian sent out a tweet about her beauty products three minutes after his original post. 

"Love that I can gradually build the perfect bronzed glow I want with #KardashianSunKissed Tan Extender w/ Bronzers!" the reality star tweeted

Hours later, the musician/radio host took a shot at Kardashian for ignoring the nation's disaster. 

"Pick your priority or pick your poison. Pretty embarrassing screen shot Kim. Isn't your 15 minutes up...," he wrote.

On Tuesday morning, Kardashian took to her Instagram to show support for the Oklahoma tragedy. She posted the below image

Enstars reported that the horrific tornado hit near Moore, Oklahoma on Monday, killing at least 51 people--including 20 children--destroying homes, businesses and schools.

The tornado hit just before 3 P.M. local time, as many children were just getting released from school and hadn't made it home yet.

Reports indicated  that two schools-Plaza Towers Elementary and Briarwood Elementary were completely leveled. KFOR-TV noted that there were at least 75 children at Plaza Towers when the tornado hit. The station also reported that at least seven children died in Plaza Towers and at least two dozen were trapped in the rubble.

Teachers tried to save children lives by covering their own bodies to protect them from the damage.

"Our hearts are broken," Oklahoma Gov. Mary Fallin said at a news conference on Monday.