Cassie is heating up the buzz she created after releasing a super-sexy teaser video for her next single 'King of Hearts' last week by lending guest vocals to a new release from singer-songwriter duo Planet IV, titled 'Sex, Drugs & Rock-n-Roll.'

"Sex, drugs, rock-n-roll, some of the greatest stories never told," sings the Bad Boy signee, over an electro synth beat produced by Tha Bizness.

After a number of delays, Cassie's new album, tentatively titled Electro Love, is complete and ready for release in early 2012.

Watch the teaser video for King of Hearts here and listen to Sex, Drugs & Rock-n-Roll below:

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