These Twitter emoji are part of a promotion for that All-Star NBA game. They will be live until Monday morning. You can use them by Tweeting the All-Star's name with a hashtag.
via @NBA
via @NBA
Those following along with the All-Star game can also use these emojis to vote for the MVP by adding #KiaAllStarMVP along with their player of choice.
via @NBA
They also have some amusing personal emojis for the broadcasters as well, although since fan voting only makes up 25% of the decision for MVP it's unlikely the broadcasters will end up getting the award.