Example of stacked spectra of early-type galaxies at 0.5 < z < 0.6 (black) and 0.9 < z < 1.0 (red, shifted for display purposes). All spectra should represent passive, red and quiescent galaxies. Early-type galaxies at high redshift show clear evidence of ongoing SF which is supported by weak [O II] 3727 emission. Early-type galaxies have been selected based on the SED type classification. Spectra of early-type galaxies selected using other criteria look very similar. Prominent absorption and emission features in the spectra are denoted with dotted lines.