Breakfast Links: Nicole Kidman's Marriage Rule; Carol Burnett Says 'No' to 'SNL'

•Nicole Kidman and Keith Urban never spend more than three days apart. (Huffington Post)

•Jimmy Fallon and Jerry Seinfeld do their best impressions of... Jerry Seinfeld. (PopEater)

•Carol Burnett would love to guest star on Glee and 30 Rock but not SNL. (Access Hollywood)

•Russell Brand talks about the pitfalls of being engaged — you can't have sex with anyone else. (E! Online)

•Singing legend Cher may be heading back on the road with a concert tour. (Extra)