So much tension in this thread.
Lady Gaga has been THE gay icon since 2008 and will be until she dies. It's nice that Madonna was one in the 80's but the only connection she has with the gay community now is the sexy ones in the GGW video.
As for Adele, I haven't seen her create a charitable organisation for the gay community.. I haven't even seen her talk about the gay community in any interview. Anyone can write a song about water and label it a 'gay anthem'.