Riker Lynch Has A Major Fan For 'DWTS' - William Shatner!

Riker Lynch waves to the cameras as he arrives at the dance studio in Los Angeles on Tuesday afternoon (March 31).

The 23-year-old R5 rocker met up with pro partner Allison Holker to start on their next dance, after tying with Nastia Liukin for the top of the leaderboard on Dancing With the Stars the night before.

PHOTOS: Check out the latest pics of Riker Lynch

Looks like Riker has a big fan — in William Shatner!

“#DWTS Riker is doing a great job!” William tweeted while watching the program on Monday night.

25+ pics inside of Riker Lynch and Allison Holker…