"The Lady in Red" is a love song from Chris de Burgh's 1986 album Into The Light. The song went to #1 in 25 countries.
The song was written in reference to (though not specifically about) his first wife Diane.
I've never seen you looking so lovely as you did tonight
I've never seen you shine so bright
I've never seen so many men ask you if you wanted to dance
They're looking for a little romance, give'em half a chance