Several fans in attendance at WWE SmackDown in Anaheim noted on social media that "White Rabbit" played during a commercial break. Nothing else was said but as you can see below, they played the song when the lights were dimmed.
This has led to speculation that WWE has paid for the rights to use the song for a new or returning star. Bray Wyatt's name has been in the news as of late after it was reported that he had talks with WWE about a possible return and there are other surprises planned in the coming weeks and months.
However, it seems more likely that the song is for Karrion Kross because he was known as The White Rabbit when he was in Lucha Underground. Kross did not appear live on SmackDown this week but he appeared via a pre-taped promo segment along with Scarlett. Kross is currently in a feud with Drew McIntyre and it looks like they will be wrestling each other at Extreme Rules in Philadelphia. Check out the clip below of "White Rabbit" playing in the arena.