The Australian singer/songwriter revealed she was offered the huge sum of cash from the 10-time Grammy Award winner but she wasn't the only pop star who coveted the tune.
Speaking of when she first wrote and sold 'Alive', she revealed: ''What's funny is that I wrote this one song and gave it to Rihanna and I had seller's remorse because I was attached to it, I regretted it. Then she gave it back to me and I was relieved.
''Then Adele heard it and asked if she could have it. I thought 'Do I like it, or do I like a million dollars? She cut it and it was so amazing. I'm a huge fan of her voice.''
'Alive' is set to feature on Adele's long-awaited third studio album to be released in November.
And whilst the 'Elastic Heart' hitmaker has penned tracks for Beyoncé, Eminem and Kanye West, she now has her eyes on a younger - more edgy - songstress for her next collaboration.
She told NME: ''I'm going to write with (FKA) Twigs.
''I think Twigs is really interesting and I want to work with her. We're going to get some crazy choruses.''
From their newest EP 'What Did You Think When You Made Me This Way', Nothing But Thieves drop the lyric video for their single 'Take This Lonely...
The Lumineers honour their friend and hero Tom Petty with a sensational cover of his 1996 song 'Walls' from the 'She's the One' soundtrack.
Watch Olly Murs get his nerd on as he blags his way into an exclusive Snoop Dogg party (where Rowan Atkinson is the bartender) in the video for their...
From 'Happy' to 'Banana Pancakes', these are soaked in positivity.
Mariah Carey is the picture of glamour in the black and white video for her brand new single 'With You'. It's the lead single from her forthcoming...
Eminem draws attention to the negative response his 2017 album 'Revival' received in the video for his latest song 'Venom'; a song recorded for the...
With the recent release of her third, very well received album 'Hunter' just behind her, Anna had plenty of relatively new songs to showcase.