The present study investigates the effect of peer evaluation tasks on learners’ noticing and production of prominence. Attention is placed on the students’ noticing episodes during the task, and whether the student utilizes what is noticed into their re-recordings to achieve more intelligible speech. The results reveal that the students directed their attention to the features of prominence, with metalinguistic reflections evident in their transcriptions and exchanges of evaluative comments. The students’ first and second recordings were then assessed by four native speakers based on five criteria: comprehensibility, rhythm, stress, intonation, and perceived naturalness. The ratings indicated that the students’ second recordings were evaluated lower in intelligibility and were regarded as being unnatural, forced, and overly exaggerated in their production of prominence. Lastly, qualitative analyses of the audio revealed that the post-task recordings involved an increased frequency of stress production, but the exaggerated prosodic qualities in pitch, elongation, and volume may have been contributing factors leading to lower intelligibility.