The 30-year-old 'Baggage Claim' singer's ideal team up would be with the 'Single Ladies' star, as she is blown away by her vocal abilities, reported Contactmusic.
"Beyonce! I've seen her in concert five times," replied Lambert, when asked about her dream duet.
For her new record, 'Platinum', the 'Automatic' singer was very happy to sing with fellow country beauty Carrie Underwood on 'Something Bad'.
"I sent her a rambling email asking her to do it. I figured she'd think I was crazy, but she wrote straight back saying she was in. I was so nervous the day she ended up coming to the studio. We ended up having a blast," she said.