Starpulse — CHICAGO (AP) — Pop star Lady Gaga performed on "The Oprah Winfrey Show" — a day after calling off a concert at Purdue University because of an undisclosed illness.[...] Read more! more info

The singer showed no apparent signs of illness as she performed a medley of her hits live on  "The Oprah Winfrey Show" on Friday, a day after calling off a concert at Purdue University. more info

Reuters — NEW YORK (Reuters) - Pop star Lady Gaga canceled a concert in Indiana on Thursday after she "passed out" and had difficulty breathing, she said on Twitter. more info

Perez Hilton — How thoughtful! A little birdie sent us this! Lady GaGa left Oprah a very GaGa-esque gift in her dressing room before she appeared on her show today. O's very own hair-bow! We hope she wears it on the air soon! more info

Perez Hilton — The good news: our wifey is doing better now. The bad news: Lady GaGa had to cancel her concert at Purdue University in West Lafayette, Indiana, last night due to a medical emergency! Gagita took to her Twitter to address her adoring fans: "I've be... more info

Starpulse — Lady Gaga was forced to cancel a concert on Thursday just minutes before she was due to take the stage after she found herself struggling to breathe.[...] Read more! more info

MTV.com News — Singer suffered from breathing problems due to 'exhaustion and dehydration,' she tweeted.By Gil Kaufman Lady Gaga Photo: Ian Gavan/ Getty Images Lady Gaga was forced to postpone her West Lafayette, Indiana, concert on Thursday night just m... more info

VH1 News — Gaga postponed an Indiana show Thursday night due to breathing problems stemming from "exhaustion and dehydration." more info

NME — Indiana gig postponed to January 26 more info

BBC News - UK — Singer Lady Gaga apologises to fans after being forced to cancel a concert in Indiana due to ill health. more info