Music: Principal of success

The 56-year-old elementary school principal Frances Botelho-Hoeg was named winner of the Boston Pops' 2005 POPSearch contest tonight, singing "When You're Good to Mama" from the musical "Chicago." She gets to sing with Keith Lockhart and the Pops - and on the same stage as country superstars Gretchen Wilson, Big & Rich and Cowboy Troy - before a half million or so people at the Hatch Shell on July 4. She'll also join the Pops for shows in Washington D.C. and Philadelphia.  It was the second shot at stardom for the Kingston, Mass., woman, who entered last year's competition but was knocked out in the second round. Last night she beat out Ellen O'Brien, a 43-year-old bartender from Winthrop, and Joseph Rucker Jr., a 32-year-old bartender from Brockton.