Whether you call it charm or swag, Justin Bieber‘s got it. And even more than that, he proved to have a heart of gold.

Beibs celebrated Valentine’s Day early this past Monday by making the dream of a 6-year-old girl battling cancer come true. And Avalanna Routh‘s mother was more than willing to tell E! News about her girl’s special day and just how thankful she was.

“Avalanna had a wonderful time, meeting with Justin in New York. Justin is charming and interacted beautifully with Avalanna—it was our pleasure to meet with him,” Aileen Roberts Routh told us.

“The meeting with Justin came about through a Facebook page and social media initiative and it all happened within a week…such a fun whirlwind week.”

Avalanna was diagnosed with ATRT—Atypical Teratoid Rhabdoid Tumor, a rare brain tumor—at just nine months old and “has fought this cancer bravely, since then. Avalanna continues to fight this aggressive disease with grace and humor.

Our family believe strongly in the need to shine a bright light on this rare pediatric cancer—ATRT. We work, tirelessly to find funding to assist the Dana Farber researchers, in funding the cure of this deadly disease. For more information & a chance to fund a cure, please visit www.cureatrt.org.”

We wish her the very best.

Source: E! News.com