Sinead Back from North Pole

12/27/2007 2:50 PM PST BY TMZ STAFF
Who's that Christmas chick? Erin go bragh, it's Sinead O'Connor! Memba her?!

The former pop star popped up at the Pogues annual holiday concert in Dublin, where she sang "Fairytale of New York." Sigh. It seems like just yesterday when she was on "SNL" ripping up pictures of the Pope, but it was 15 years ago! Now Sinead Marie-Bernadette O'Connor is a separated mother of four.