Irwin shows her love for 'Lucy'
Actress Sirena ÂIrwin sounds familiar to "SpongeBob SquarePants" fans " she's voiced the perky yellow sponge's mother since 1999. But her recent turn as Lucy Ricardo defines what it means to be animated."What I set out to do was capture the essence and yet not have it be an impersonation," said Irwin, who grew up in Northampton."I felt a few things I had to get spot-on. Her cry had to be her cry. Her eeeeeww (also…