When predicting high sales of a new album based on two people buying it, which logical fallacy is being committed?

The logical fallacy being committed when predicting high sales of a new album based on the purchases of just two individuals is hasty generalization. This fallacy occurs when a conclusion is drawn from an insufficient amount of evidence. In this case, assuming that if two people bought the album, it will lead to high sales is an extrapolation that lacks a representative sample of the larger population. High sales predictions should be based on broader data points, not just on the actions of a couple of individuals, as their behaviors may not reflect the trends or tastes of the general public. This fallacy highlights the importance of ensuring that conclusions are supported by adequate evidence to avoid misleading assumptions.