This is so sad ... our girl Britney Spears had to make an extremely difficult decision, but we vote to always putting family first and we KNOW her fans will understand!

Brit posted this heartbreaking message on Instagram this morning, explaining why she's put her new Las Vegas residency on indefinite hiatus. Her new show "Domination" was set to run for 32 shows at the Park Theater at the new Park MGM resort beginning February 13. It's unclear whether the shows will be rescheduled; tickets are being refunded at this time.

Britney's message read: "I don’t even know where to start with this, because this is so tough for me to say. I will not be performing my new show Domination. I’ve been looking forward to this show and seeing all of you this year, so doing this breaks my heart. However, it’s important to always put your family first… and that’s the decision I had to make. A couple of months ago, my father was hospitalized and almost died. We’re all so grateful that he came out of it alive, but he still has a long road ahead of him. I had to make the difficult decision to put my full focus and energy on my family at this time. I hope you all can understand. More information on ticket refunds is available on britneyspears.com. I appreciate your prayers and support for my family during this time. Thank you, and love you all… always."

Two months ago, Brit's dad Jamie suffered a ruptured colon and was hospitalized for a month.

Early last year, Britney wrapped a four-year run at Planet Hollywood’s Axis Theater; Brit then set off on tour with Pitbull.

MGM Resorts has released a statement about the cancellation, reading: "All of us at MGM Resorts wish Mr. Spears a speedy recovery. We wholly understand and respect Britney’s commitment to her family and believe that her place is with them during this important time."

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I don’t even know where to start with this, because this is so tough for me to say. I will not be performing my new show Domination. I’ve been looking forward to this show and seeing all of you this year, so doing this breaks my heart. However, it’s important to always put your family first… and that’s the decision I had to make. A couple of months ago, my father was hospitalized and almost died. We’re all so grateful that he came out of it alive, but he still has a long road ahead of him. I had to make the difficult decision to put my full focus and energy on my family at this time. I hope you all can understand. More information on ticket refunds is available on britneyspears.com. I appreciate your prayers and support for my family during this time. Thank you, and love you all… always.

A post shared by Britney Spears (@britneyspears) on