Beyoncé's "Halo" was tight on the Late Show With David Letterman last night, which aired just hours after
she called rumors she warbled off-key at the Today show last November "completely ridiculous." The only snafu came after she stopped singing, when an impressed (and somewhat tongue-tied) Letterman called her album "
I Am ... Sara Fierce."
Earlier in the day, the Internet was abuzz over
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