The 67-year-old star showed off her pink locks while twirling around in her gorgeous dress for fans and press outside the Royal Opera House.
"I just thought it would be fun to dye my hair pink," Mirren told reporters, according to the U.K.'s Daily Mail. "I mean, honestly, I was watching America's Next Top Model and the season where there were the British girls. Well the British girl who won [Sophie Sumner], she had pink hair, and I thought, 'That looks really pretty.' So I'm copying her, basically."
Each year the BAFTA Awards recognizes the biggest and brightest stars in the industry, and this time around there are plenty of deserving ladies up for the Best Leading Actress honor.
The nominees include Miss Mirren for her role in "Hitchcock," along with Jessica Chastain (“Zero Dark Thirty”), Marion Cotillard (“Rust and Bone”), Jennifer Lawrence (“Silver Linings Playbook”), and Emanuelle Riva (“Amour”).