Halsey plans to attend the Grammy Awards just days after undergoing surgery. The 27-year-old star hasn’t attended the ceremony since 2017, but Halsey is determined to be at the MGM Grand Garden Arena in Las Vegas on Sunday (03.04.22). In an Instagram post, the chart-topping singer wrote: “The last time I attended the Grammys was 2017 and it was 3 days after I had my first Endometriosis surgery. I walked the carpet with my stitches still in [laughing emoji] As luck would have it, I’m attending tomorrow for the first time in years and I had surgery again (you guessed it) 3 days ago. (sic)” Halse…