Janet Jackson - who has been dating record producer Jermaine Dupri since 2002 - sings about the experience of having sex with multiple partners on her new album 'Discipline'.The 'Together Again' star said: "I think whatever you're into, as long as you both are into it, it's cool."
Janet also pleaded with people not to be so critical of troubled singer Britney Spears.
She said: "I really don't think it's fair for people to be so judgmental because we don't know what young actors and musicians are feeling."
She added to US TV show 'Extra': "You read what people want you to know or want you to think but no-one really know what's going on in her heart and soul and her mind. The only way you could understand a glimpse of what she is going through would be to sit down and speak to her."