touring overseas, justin and 'n sync hit it big in the u.s. with a disney concert special, filling in as a last-minute replacement for the backstreet boys. ♪ how can it be >> it just so happened the guys were in orlando and ready. when that call was made to disney to say, hey, we can fill that spot, they rose to the occasion and went and did it. that was a big moment for us. ♪ when i look into your eyes >> 'n sync became the new teenage heartthrobs. ♪ god must have spent a little more time on you ♪ >> we had a good time. >> but behind the success, distrust was brewing. between 'n sync and lou pearlman. >> when you're getting up at 5:00 in the morning going on the radio and spending 24 hours on the job and someone else is at home going to the steakhouses