  We present the result of a highly sensitive spectropolarimetric study
dedicated to intermediate mass stars. We report the detection of sub-gauss
surface magnetic fields on the normal, rapidly-rotating A-type star Vega and on
the moderately-rotating Am star Sirius A. These magnetic detections constitute
the first evidence that tepid stars that do not belong to the class of Ap/Bp
stars can also host magnetized photospheres, suggesting that a significant
fraction of stars in this mass regime are magnetic. We present here the
observational clues gathered so far to progress towards understanding the
physical processes at the origin of this newly identified Vega-like magnetism.
