  Intermediate mass Pre-main sequence stars (1.5 $M_{\odot}< M < 5M_{\odot}$)
cross the instability strip on their way to the main sequence. They are
therefore expected to be pulsating in a similar way as the $\delta$ Scuti
stars. In this contribution we present the status of the observational studies
of pulsations in these stars with special emphasis on recent results from our
group. The prospects for future investigations of these objects from the ground
and from space are discussed.
