Celeb Twitter Pics: Ian Somerhalder Meets Grumpy Cat — and More!

Our favorite celebrities continue to offer more glimpses into their personal and professional lives through those miraculous inventions called Twitter and Instagram!

For example, Ian Somerhalder met Internet sensation Grumpy Cat at the Mashable Tent at SXSW, a union immortalized in Ian's March 10 tweet. For some reason, the finicky feline looks a tad less grumpy... We wonder why?

Click through for the rest of the snapshots!