 Nyorai mberi kweiyi ndima - Mugore rimwe chetero, Lays akaramba nomutsa kukokwa kwaNapoleon kuti amubatane naye pakuenda kwake kuEgipita. Kunyange zvakadaro, vaviri vacho vakaramba vane ushamwari uye pakati pa1801 na1802, Lays - uyo aiwanzoita muimba yaJosephine - akava muimbi mukuru weChapel Napoleon akanga asimbisa paTuileries pasi pekutungamirirwa kwaGiovanni Paisiello. Saka, makore matatu gare gare, musi wa 2 Zvita 1804, Lays ndiye aive mutambi anotungamira mumimhanzi yaiperekedza korona yaNapoleon semutongi. Mhemberero dzakatevera dzakapera paHôtel de Ville musi wa 16 Zvita naLays naChéron vachiimba cantata Trasibule, yakanyorerwa chiitiko ichi naHenri-Montan Berton. Muna 1810, apo Napoleon akarambana naJosephine ndokupinda muwanano yechipiri neAustria Archduchess Marie Louise, Lays aive sarudzo iri pachena yekuita pamhemberero yemuchato. Munguva iyi, basa rake repamusoro pechikuva rakaramba risina kuderera, uye muna 1807 akagadzwawo kuti ashande muOpera jury inotarisira kuongorora mabasa matsva anozoiswa. Dzimwe nhengo dzejury dzakauya dzikaenda, asi Lays akaramba ari muhofisi nguva dzose kusvikira muna 1815. 