Eva Longoria hairstyle
Eva Longoria formal hairstyle

An easy, yet eloquent formal style, is this one worn by Eva Longoria recently.  This look appears to have been done in a classic way, by simply pulling hair back into a low-riding band, folding length in half by rolling it under, then rebanding it back into the same ponytail.  The doubled over style will fan out naturally, more so with very dense hair.   Simply cover up the band by a tendril you have pulled out or worn left out for this purpose.  Pin end into place ensuring that it remains unseen.