The most entertaining moment of Avril Lavigne's concert at White River Amphitheater on Monday night occurred when my concert buddy and I spent two minutes attempting to force our curmudgeonly late-twentysomething voices into a squeal that matched the tires-on-wet-pavement decibels of the 9-year-olds around us.

Our boredom, however, was not necessarily Lavigne's fault. Her flat, snotty vocals were even, surprisingly wide-ranged, and happily acid-reflux-free. She bopped around in camouflage pants with all the high-octane sullenness of any "Sk8r Boi" worth his Warped Tour tickets. Lavigne is actually quite good at her job — I'm just not her intended employer, although judging from the only partially filled venue, the preadolescent CEOs of Avril, Inc., may be considering downsizing.

In fact, when not on the edge of my seat waiting to hear how "My Happy Ending" would turn out, I had plenty of time to contemplate Lavigne's future. This year, Lavigne has not only gotten herself engaged (to Sum 41's Deryck Whibley), but she will also turn 21. Both events place her dangerously near the statute of limitations for Hot Topic-issued brattiness. At the risk of making things so complicated, as Avril might say, I've put together a list of career options for Ms. Lavigne to consider when the hypnotic fluorescents of the mall begin to lose their luster.

Olsen Twin: With her long blonde mane and gaunt, slightly sickly grimace, Lavigne could easily pass for a "Full House"-prodigy-turned-multinational-corporation/tabloid fodder. She'd do well to trade in fiancé Whibley for a club mogul and a vente macchiatto pronto.

Alternative: If Mary-Katedom doesn't work out, she may also have a future as a Claudia Schiffer impersonator.

Kickboxing Instructor: Ending nearly every song with a mighty pop-punk kick, Lavigne seemed more than ready to take on Billy Blanks — or Ashlee Simpson.

Vanessa Carlton: When Lavigne rather tenderly tickled the ivories on a couple of the "adult" ballads from "Under My Skin," one could almost visualize her making her way downtown playing piano in the back of a truck.

Professional Yodeler: The sweetest spot in Lavigne's range is at the break between her chest and head voices. Although her upper registers are rather dulcet and airy, this prime yodeling territory could easily be developed during a few months on the county-fair circuit.

Gwen Stefani: Perhaps the most successful example of how to parlay suburban angst into a lasting career, Stefani should be Lavigne's primary role model, if she isn't already.

To be added immediately to Avril's to-do list: Get assistant started on the search for an acronymic clothing line and a cute Japanese backup group.