Who says Fidelity isn’t fun? Speaking at OMMA Social, the investment firm’s digital marketing head Chris Needham previewed a pre-roll spot debuting this week before “Dancing with the Stars,” online video. The spot shows various people walking up to an ATM that presents them with the option of paying $3.50 for a transaction or dancing for 10 seconds for free. After their initial bafflement, the different people are shown in succession pulling their own special dance moves to avoid the $3.50 fee. Needham said the spot was created by video content agency Conscious Minds for a mere $20K.