If the lyrics of their latest single are to be believed, Sugababes are probably too sexy for this blog. But I’m going to sing their praises anyway. They out-sexy Pussycat Dolls without even trying. The UK trio’s new single, “Get Sexy,” from their forthcoming seventh album, Sweet 7, just entered the UK sales chart at No. 2, adding one more hit to their nearly 10-year chart streak. The Destiny’s Child of the UK, Sugababes have survived not only catfights and the spotlight, but the loss and replacement of two original members, to become the No. 1 girl group in the UK and possibly the longest lived. And the girls are all still in their mid 20s. I haven’t been able to figure out why they’ve never been able to make a dent in the U.S., but we Yankees are often a little late to the party — when we bother to show up at all.