I'm the biggest Lady Gaga fan: Sam Smith

Singer Sam Smith says would love to collaborate with pop star Lady Gaga as he is her "biggest fan".
The 23-year-old "Writing's On The Wall" hitmaker said he has queued up to watch Gaga's shows in the past, according The Hollywood Reporter.
"I'm the biggest Gaga fan there is. I queued up for her showsS when I was 17!" he said.