Pop singer Pink is battling the flu, and she said it will make her blue if she is unable to sing the national anthem Sunday at Super Bowl LII.

But for now, she has every intention of stepping to the microphone before the New England Patriots and Philadelphia Eagles play in Minneapolis.

The singer, an Eagles fan from Doylestown, Pennsylvania, said Friday on her Instagram account that she is “trying to practice the flu away.”

“I’ve been waiting to sing this song since 1991 when I saw my idol, Whitney Houston, own this song,” Pink wrote.

>> PHOTOS: Pink through the years

She said the flu is changing what was one of her dreams into “a sort of nightmare,” adding that singing the national anthem is one of “the biggest honors of my life.”

Pink ended her post with the hashtags #pleasegivememyvoiceback and #ificansingimgonnakillit.