With Mama in January 1967, Dalida had success in France and Turkey, and was back on top of Italian charts later the same year. "Ciao amore, ciao", written and composed by Tenco, was released alongside as they chose it for their competing song at Sanremo Music Festival. The festival premiered on 26 January and they both separately sang their own version. Under the influence of stage fright and alcohol, Tenco delivered a very bad interpretation while Dalida concluded the evening with ovation, but eventually they were eliminated in the first round. The following night ended tragically when Tenco was found dead by Dalida in their hotel room. It was reported that the suicide letter explained how he died by suicide due to elimination, as protest to hoax and bribed jury, but the major suspicion emerged how actually the mafia was involved. Although the public did not know anything about their relationship, the event greatly affected Dalida and the next concert in Boulogne-Billancourt scheduled for 31 January was cancelled. The following week on 7 February, she appeared on TV show "Palmares des chansons" dedicating her rendition of "Parlez moi de lui" to Tenco. Wearing the same dress she wore when she found his body, the performance was highly sentimental but she showed nothing of a verging depression. On 26 February, Dalida attempted to take her life, ended up in a hospital and spent five days in a coma. The truth broke out about her engagements with Tenco, leaving her worldwide public stunned. Her career was put on hiatus for three months.