Kim Kardashian is serious -- about her unused data.

In a tongue-in-cheek T-Mobile ad, the 33-year-old reality star does a mock PSA for unused data. The ad shows selfie-loving Kim in a series of selfies in different vignettes -- playing tennis, putting on make up, skiing -- so pretty much just showing what she does in real life.

Kim somberly says over dramatic background music, “Each month millions of gigs of unused data are taken back by wireless companies. Tragic. Data you paid for that could be used to see my makeup, my backhand, my outfits, my vacations and my outfits. Sadly all lost. Please, help save the data.”

At least she has a good sense of humor about how absolutely ridiculous she is!