Slap in the face?

How cool is this? I went to go see Lights, the Journey tribute band last night along with Queen Nation, JSS was there & sang a song with the Queen band but not with the Journey band...I find it quite funny he didn't hop on stage with the obvious!! Think maybe there are bad feelings? I know he did Separate Ways at the end of his solo tour but wonder if it was by choice or just that he wasn't invited up. Lights are fantastic by the way, the singer NAILED every song & was by far one of the better ones I've heard live, youtube or otherwise. Queen Nation too were amazing except the singer sounds little like Freddie, he was a great singer, dressed the part & all but didn't have the isms that make it Queen. Jeff did Spread Your Wings with them, love his rendition of that.