Britney Spears opened a children's cancer facility on Saturday (04.11.17).

The kind-hearted singer had donated $1 million from the ticket sales of her 'Piece of Me' Las Vegas residency to the Nevada Childhood Cancer Foundation's Britney Spears Campus in Las Vegas, and was ''really excited'' to cut the ceremonial ribbon to officially open the ''amazing facility''.

She said: ''I'm just really excited to be standing here for our new NCCF campus.

''We started fundraising in 2014 and we've raised $1 million to build this amazing facility to support the kids and the families everywhere. I'm so thankful to everyone for their generosity in making this a reality and making this happen.''

The 'Womanizer' hitmaker - who was joined by her boyfriend Sam Asghari at the event - was hailed a ''special person'' for her fundraising efforts for the facility.

According to People magazine, NCCF CEO Jeff Gordon said: ''We can't thank Britney enough being able to do this. Our dream for many, many years has been to be able to have one one building that all of our 45 programs can come together in one place. And that we are able to to today.

''And that doesn't happen without someone like Britney Spears.

''We saw a side of Britney Spears that so many people maybe don't have the opportunity to see. You realise what a special person Britney is.

''She's an incredible performer, we know all that, but she does care and the more we've gotten to know her, the more grateful we've become to her, and the kids have adored her.''

Steve Sisolak, the Clark County Commission chair, compared the generosity shown by Britney - who has sons Sean Preston, 12, and Jayden, 11, with ex-husband Kevin Federline - to that shown to the wider Las Vegas area after the Route 91 massacre last month.

He said: ''35 days ago our community when through something that we will never forget. People around the world got to see a side of Vegas that they had never seen before. They saw the love that Las Vegas has.

''Today is similar to that because until today people haven't totally understood what Britney Spears has meant to this community. We've all seen her on stage, we've all seen her perform and what a phenomenal performer and entertainer she is, but what's she's doing today is another side of Britney that unfortunately most of us haven't had the opportunity to see before.

''What she is doing today, and continues to do, is going to benefit thousands of children that comes through this facility, and for that we are sincerely thankful and very, very appreciative.''