l In this Letter, we report the first observation of metal-enhanced S-2 emission at room and low temperature (77 K). The S-2 emission intensity of azulene is enhanced by close proximity to silver island films (SiFs). In this regard, a approximate to 2-fold higher S-2 fluorescence intensity of azulene was observed from SiFs as compared to a glass control sample. This suggests that S-2 excited states can couple to surface plasmons and enhance S-2 fluorescence yields, a helpful observation in our understanding the interactions between plasmons and lumophores, and our continued efforts to develop a unified plasmon-lumophore/fluorophore theory. (c) 2006 Elsevier B.V. All rights reserved.