Now, unless you are living under a rock or you're a Keanu Reeves hater (How dare you?!), you will know that the John Wick actor recently made an appearance with his girlfriend, Alexandra Grant, at the Gucci-hosted LACMA Art+Film event in Los Angeles.
Mirren, who turned 74 in July, addressed the controversy on Wednesday when approached by ET at the premiere of her new movie The Good Liar.
"I wasn't wearing my glasses at first and I legit thought he was dating Helen Mirren which I also would have been here for".
According to friends of the actor, he is very happy with Alexandra Grant.
Mirren has been happily married to director Taylor Hackford since 1997 and said she actually knows Reeves because of her husband.
"The fact that some people are mistaking Keanu Reeves age appropriate girlfriend with Helen Mirren is wild", comedian and "2 Broke Girls" creator Whitney Cummings tweeted. "He did a film with my husband [1997's "The Devil's Advocate"] and he is just the most adorable, lovely person".
Relationship rumors started swirling in the past, but Keanu Reeves and Alexandra Grant have been mum about it.
Social media was flooded with comments from people who were sad that Keanu has moved on with someone, especially since his new romantic partner isn't a celebrity but an artist. "That was very flattering on me, you know, because she's obviously lovely".
Keanu shocked followers as he hasn't had a public girlfriend since 1999. I had this auto with these speakers in the back; she turned me on to bands like Joy Division, the Violent Femmes.
Alexandra contributed the illusions to Keanu's first book, an illustrated adult book called Ode to happiness, which was published in 2011, and also illustrated Keanu's poetry book, darkness released in 2015. Five years later, they worked together again on photography series Shadows and in 2017, the twosome founded publishing company X Artists' Books alongside Jessica Fleischmann.
Although they are both tight-lipped their alleged romance, they seemed to confirm their relationship on the red carpet last week.