AUBURN, Ala. -- Singer Taylor Swift's surprise visit to Auburn University on Monday required that fans

Michael Wekall and Ryan Leander meet a series of challenges set out by the singer before the guys could get the celebrity hug they so desired.



But it didn't take many challenges to win the embrace.









That apparently cinched it. After they'd posted their video on YouTube, Swift posted a video of her own in response.



"Hey Michael and Ryan, it's Taylor," she said in her video, which was on YouTube and



She then said she had an idea for the pair's third challenge and said "I think this one should be time-based."



For their second and last challenge, the Auburn students spelled out Swift's favorite number -- the one that for many people is considered unlucky, 13 -- with cars in a field. They then went up in an airplane and videotaped the scene.That apparently cinched it. After they'd posted their video on YouTube, Swift posted a video of her own in response."Hey Michael and Ryan, it's Taylor," she said in her video, which was on YouTube and Taylor Swift TV. "I cannot believe your response to the last challenge. You went up in a plane and had cars spelling out 13! You're crazy! That was unbelievable. I didn't expect anything that insane."She then said she had an idea for the pair's third challenge and said "I think this one should be time-based."

"So I had this idea. I'm going to send you an e-mail at 12:30 central time on Monday. Thanks for putting so much into it. This is going to be fun."



The e-mail was sent at 12:30 Monday. Afterward,

Wekall posted on their website, Facebook group and Twitter pages asking followers in Auburn to meet at The Hotel at Auburn University and Dixon Conference Center at 2 p.m. for karaoke to sing Swift's "You Belong with Me."



It was while singing the song that Swift interrupted the karaoke video to say she wished she could be there in person, then



It was while singing the song that Swift interrupted the karaoke video to say she wished she could be there in person, then actually showed up in person for hugs, kisses on the cheek and an impromptu concert.

Wekall and Leander had the hug idea in January, starting a website,

, featuring videos detailing their mission. The also established

dedicated to the project, attracting more than 8,700 members.

On March 25, Swift posted a video challenging to Wekall and Leander to do a good deed, helping an elderly woman across the street, in order to earn their hugs.

The two sought assistance from members of their Facebook group and their Twitter followers and created a video montage of people from all over the world helping an elderly woman across the street. In addition, they planned their own walk across the street at Toomer's Corner, which included Aubie and a group of students and friends who showed up to help with the task.

Links related to Taylor Swift's surprise Auburn appearance:

Taylor Swift In Auburn :: April 26, 2010 :: AHugfromTaylorSwift.com from Robert on Vimeo.