Taylor Swift's good pal Blake Shelton has warned his Academy of Country Music (ACM) Awards co-host not to insult her on stage tonight (07.04.13).

'The Voice' USA judge thinks his fellow presenter Luke Bryan should avoid angering the 23-year-old 'I Knew You Were Trouble' singer's fans at the ceremony at the MGM Grand Garden Arena in Las Vegas.

Asked if he had any advice for Luke, Blake said: ''I would tell him to be prepared for the onslaught of hatred that will come from Taylor Swift's fan base if you say any sort of a joke or if she's any part of a punch line in the monologue.''

Taylor is nominated for five awards at the 48th annual event and will also team up with Tim McGraw and Keith Urban for a performance of the track 'Highway Don't Care'.

Blake's wife Miranda Lambert, who is also nominated for five awards, also warned Luke to beware of her husband.

She told People.com: ''I think Luke is nervous and he should be. Not because he won't do great. It's because my husband is a loose cannon and he never goes by prompter and I never know what he's going to say or do.''

Other all-star duets announced for the night include Stevie Wonder, who is to perform with Hunter Hayes.

Luke has a busy night ahead of him as he is also set to perform his new single 'Crash My Party', as well as being up for four different trophies, including Entertainer of the Year.

He recently said: ''It's all a dream. All I ever wanted to be is a big old country star, and I cannot believe it's happened. It's the time of my life, and I'm loving every day.''