Jessica SanchezMANILA — When “American Idol's" latest season finalists perform at the Smart Araneta Coliseum on Sept. 21, will Jessica Sanchez sing a duet with friend DeAndre Brackensick? The duo recently confirmed online— on Ustream for her, Twitter for him—that they are dating, their declarations complete with smiley faces and cutesy spellings. Already there is speculation that Brackensick may soon record a duet with Sanchez, who placed first runner-up in the reality talent search, on her upcoming album with Interscope Records. The couple has embarked on a 45-date concert tour with fellow finalists, including big winner Phillip Phillips. Metro Manila is the tour's final stop. — Agencies