NBC's 'America's Got Talent' was in Los Angeles last night for the fifth audition show of the season. Watch videos of the best and worst tryouts below...

Judges Sharon Osbourne and David Hasselhoff were not happy at first with the lack of talented entertainers in LA.

But as always, there were some diamonds in the rough who were granted passage to the next round in Las Vegas.

Stuttering seventeen year old Bri sang her heart out on the Jonas Brothers' song 'Burnin' Up.' And pint-sized TJ & The Little Mama's, ages six through nine, danced their way into the next round.

The sexy chainsaw juggling circus act of Mario and Jennifer was also enough to earn a trip to Sin City. But the deep, booming voice of Lawrence Beaman ended the show with the night's best performance.

Who was best last night? Leave a comment below! Last week's videos here and here.

Mario and Jenny video
This husband and wife team bring sexy and dangerous back.

Bri Sings Jonas Brothers video
The audience and judges are burnin' up for Bri.

TJ & The Little Mama's video
These pint-size performers earn giant-size cheers.

Lawrence Beaman video
A big voice and a big heart will go a long way.

Bad Acts video
Not all the acts who hit the stage have talent.

Who do you think was best last night and so far this season? Leave your comments below!